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• Squid refresh_pattern won't cache "Expires: ..."

  - by Marcelo Cantos

  Background I frequent the OpenGL ES documentation site at http://www.khronos.org/opengles/sdk/1.1/docs/man/. Even though the content is completely static, it seems to force a reload on every single page I visit, which is very annoying. I have a squid 3.0 proxy set up (apt-get install squid3 on Ubuntu 10.04), and I added a refresh_pattern to force the pages to cache: refresh_pattern ^http://www.khronos.org/opengles/sdk/1\.1/docs/man/ … 1440 20% 10080 … override-expire ignore-reload ignore-no-cache ignore-private ignore-no-store This is all on one line, of course. While this appears to work for the XHTML documents (e.g., glBindTexture), it fails to cache the linked content, such as the DTD, some .ent files (?) and some XSL files. The delay in fetching these extra files delays rendering of the main document, so my principal annoyance isn't fixed. The only difference I can glean with these ancillary files is that they come with an Expires: header set to the current time, whereas the XHTML document has none. But I would have expected the override-expire option to fix this. I have confirmed that documents have the same base URL. I have also truncated the pattern to varying degrees, with no effect. My questions Why does the override-expire option not seem to work? Is there a simple way to tell squid to unconditionally cache a document, no matter what it finds in the response headers? (Hopefully) relevant output cache.log Jan 01 10:33:30 1970/06/25 21:18:27| Processing Configuration File: /etc/squid3/squid.conf (depth 0) Jan 01 10:33:30 1970/06/25 21:18:27| WARNING: use of 'override-expire' in 'refresh_pattern' violates HTTP Jan 01 10:33:30 1970/06/25 21:18:27| WARNING: use of 'ignore-reload' in 'refresh_pattern' violates HTTP Jan 01 10:33:30 1970/06/25 21:18:27| WARNING: use of 'ignore-no-cache' in 'refresh_pattern' violates HTTP Jan 01 10:33:30 1970/06/25 21:18:27| WARNING: use of 'ignore-no-store' in 'refresh_pattern' violates HTTP Jan 01 10:33:30 1970/06/25 21:18:27| WARNING: use of 'ignore-private' in 'refresh_pattern' violates HTTP Jan 01 10:33:30 1970/06/25 21:18:27| DNS Socket created at 0.0.0.0, port 37082, FD 10 Jan 01 10:33:30 1970/06/25 21:18:27| Adding nameserver 192.168.1.1 from /etc/resolv.conf Jan 01 10:33:30 1970/06/25 21:18:27| Accepting HTTP connections at 0.0.0.0, port 3128, FD 11. Jan 01 10:33:30 1970/06/25 21:18:27| Accepting ICP messages at 0.0.0.0, port 3130, FD 13. Jan 01 10:33:30 1970/06/25 21:18:27| HTCP Disabled. Jan 01 10:33:30 1970/06/25 21:18:27| Loaded Icons. Jan 01 10:33:30 1970/06/25 21:18:27| Ready to serve requests. access.log Jun 25 21:19:35 2010.710 0 192.168.1.50 TCP_MEM_HIT/200 2452 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/glBindTexture.xml - NONE/- text/xml Jun 25 21:19:36 2010.263 543 192.168.1.50 TCP_MISS/304 322 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml1-transitional.dtd - DIRECT/74.54.224.215 - Jun 25 21:19:36 2010.276 556 192.168.1.50 TCP_MISS/304 370 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/mathml.xsl - DIRECT/74.54.224.215 - Jun 25 21:19:36 2010.666 278 192.168.1.50 TCP_MISS/304 322 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-lat1.ent - DIRECT/74.54.224.215 - Jun 25 21:19:36 2010.958 279 192.168.1.50 TCP_MISS/304 322 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-symbol.ent - DIRECT/74.54.224.215 - Jun 25 21:19:37 2010.251 276 192.168.1.50 TCP_MISS/304 322 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-special.ent - DIRECT/74.54.224.215 - Jun 25 21:19:37 2010.332 0 192.168.1.50 TCP_IMS_HIT/304 316 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/ctop.xsl - NONE/- text/xml Jun 25 21:19:37 2010.332 0 192.168.1.50 TCP_IMS_HIT/304 316 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/pmathml.xsl - NONE/- text/xml store.log Jun 25 21:19:36 2010.263 RELEASE -1 FFFFFFFF D3056C09B42659631A65A08F97794E45 304 1277464776 -1 1277464776 unknown -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml1-transitional.dtd Jun 25 21:19:36 2010.276 RELEASE -1 FFFFFFFF 9BF7F37442FD84DD0AC0479E38329E3C 304 1277464776 -1 1277464776 unknown -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/mathml.xsl Jun 25 21:19:36 2010.666 RELEASE -1 FFFFFFFF 7BCFCE88EC91578C8E2589CB6310B3A1 304 1277464776 -1 1277464776 unknown -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-lat1.ent Jun 25 21:19:36 2010.958 RELEASE -1 FFFFFFFF ECF1B24E437CFAA08A2785AA31A042A0 304 1277464777 -1 1277464777 unknown -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-symbol.ent Jun 25 21:19:37 2010.251 RELEASE -1 FFFFFFFF 36FE3D76C80F0106E6E9F3B7DCE924FA 304 1277464777 -1 1277464777 unknown -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/xhtml-special.ent Jun 25 21:19:37 2010.332 RELEASE -1 FFFFFFFF A33E5A5CCA2BFA059C0FA25163485192 304 1277462871 1221139523 1277462871 text/xml -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/ctop.xsl Jun 25 21:19:37 2010.332 RELEASE -1 FFFFFFFF E2CF8854443275755915346052ACE14E 304 1277462872 1221139523 1277462872 text/xml -1/0 GET http://www.khronos.org/opengles/sdk/1.1/docs/man/pmathml.xsl

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• Building nginx 1.0.4 on Amazon EC2 micro - perl and python problems

  - by digitaltoast

  I'd like to run nginx as a reverse proxy with apache2 on my EC2 micro instance. yum install nginx gives me nginx-0.8.53-1.2.amzn1.x86_64.rpm The current nginx is 1.0.4 I found and followed this guide: http://kdn2.info/2011/05/install-nginx-on-amazon-ec2/ It works fine up to and including "make". When I get to checkinstall --fstrans=no I get ERROR: ld.so: object '/usr/lib/installwatch.so' from LD_PRELOAD cannot be preloaded: ignored. test -d '/var/log/nginx' || mkdir -p '/var/log/nginx' ERROR: ld.so: object '/usr/lib/installwatch.so' from LD_PRELOAD cannot be preloaded: ignored. make[1]: Leaving directory `/root/src/nginx-1.0.4' ======================== Installation successful ========================== Copying documentation directory... ./ ./CHANGES ./LICENSE ./README cp: cannot stat `//var/tmp/gRWoVgIcdbmjfTjoVGBM/newfiles.tmp': No such file or directory Copying files to the temporary directory...OK Striping ELF binaries and libraries...OK Compressing man pages...OK Building file list...OK Building RPM package... FAILED! *** Failed to build the package ...and the logfile is full of: Building target platforms: x86_64 Building for target x86_64 Processing files: nginx-1.0.4-1.x86_64 error: File not found: /usr/src/rpm/BUILDROOT/nginx-1.0.4-1.x86_64/usr error: File not found: /usr/src/rpm/BUILDROOT/nginx-1.0.4-1.x86_64/usr/doc There IS /usr/src/rpm/BUILDROOT/nginx-1.0.4-1.x86_64/ but no /usr Following further down the page, it says: "If we want to use, for example, PHP 5.2 we can download PHP and Nginx compatible with Amazon Kernel(Xen Kernel) from the CentosALT Repository." So I install the two repositories, but when I yum install http://centos.alt.ru/pub/nginx/1.0/RPMS/x86_64/nginx-stable-1.0.4-1.el5.x86_64.rpm I get Error: Package: nginx-stable-1.0.4-1.el5.x86_64 (/nginx-stable-1.0.4-1.el5.x86_64) Requires: perl(:MODULE_COMPAT_5.8.8) You could try using --skip-broken to work around the problem but that doesn't fix it. When I do yum update, I get --> Finished Dependency Resolution Error: Package: python-distribute-0.6.19-10.1.x86_64 (devel_languages_python) Requires: python < 2.5 Installed: 1:python-2.6-1.19.amzn1.noarch (@amzn-main) python = 1:2.6-1.19.amzn1 Error: Package: python-distribute-0.6.19-10.1.i586 (devel_languages_python) Requires: python < 2.5 Installed: 1:python-2.6-1.19.amzn1.noarch (@amzn-main) python = 1:2.6-1.19.amzn1 I've tried everything - yum clean all and various other suggestions found on other sites. If anyone has any suggestions or a known package of the current 1.04 nginx working on EC2 Micro (Linux ip-10-56-63-85 2.6.35.11-83.9.amzn1.x86_64 #1 SMP Sat Feb 19 23:42:04 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux - which I think is RHEL 5?) then I'd be grateful. Incidentally, does this repolist look right? repo id repo name status CentALT CentALT Packages for Enterprise Linux 5 - x86_64 enabled: 112+157 amzn-main amzn-main-Base enabled: 2,706 amzn-main-debuginfo amzn-main-debuginfo disabled amzn-main-nosrc amzn-main-nosrc disabled amzn-updates amzn-updates-Base enabled: 328 amzn-updates-debuginfo amzn-updates-debuginfo disabled amzn-updates-nosrc amzn-updates-nosrc disabled devel_languages_python Python and Python Modules (SLE_10) enabled: 1,452+768 epel Extra Packages for Enterprise Linux 5 - x86_64 enabled: 5,892+604 epel-debuginfo Extra Packages for Enterprise Linux 5 - x86_64 - Debug disabled epel-source Extra Packages for Enterprise Linux 5 - x86_64 - Source disabled epel-testing Extra Packages for Enterprise Linux 5 - Testing - x86_64 disabled epel-testing-debuginfo Extra Packages for Enterprise Linux 5 - Testing - x86_64 - Debug disabled epel-testing-source Extra Packages for Enterprise Linux 5 - Testing - x86_64 - Source disabled s3tools Tools for managing Amazon S3 - Simple Storage Service (RHEL_6) enabled: 2+1 repolist: 10,492

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• Nginx + PHP-FPM = "Random" 502 Bad Gateway

  - by david

  I am running Nginx and proxying php requests via FastCGI to PHP-FPM for processing. I will randomly receive 502 Bad Gateway error pages - I can reproduce this issue by clicking around my PHP websites very rapidly/refreshing a page for a minute or two. When I get the 502 error page all I have to do is refresh the browser and the page refreshes properly. Here is my setup: nginx/0.7.64 PHP 5.3.2 (fpm-fcgi) (built: Apr 1 2010 06:42:04) Ubuntu 9.10 (Latest 2.6 Paravirt) I compiled PHP-FPM using this ./configure directive ./configure --enable-fpm --sysconfdir=/etc/php5/conf.d --with-config-file-path=/etc/php5/conf.d/php.ini --with-zlib --with-openssl --enable-zip --enable-exif --enable-ftp --enable-mbstring --enable-mbregex --enable-soap --enable-sockets --disable-cgi --with-curl --with-curlwrappers --with-gd --with-mcrypt --enable-memcache --with-mhash --with-jpeg-dir=/usr/local/lib --with-mysql=/usr/bin/mysql --with-mysqli=/usr/bin/mysql_config --enable-pdo --with-pdo-mysql=/usr/bin/mysql --with-pdo-sqlite --with-pspell --with-snmp --with-sqlite --with-tidy --with-xmlrpc --with-xsl My php-fpm.conf looks like this (the relevant parts): ... <value name="pm"> <value name="max_children">3</value> ... <value name="request_terminate_timeout">60s</value> <value name="request_slowlog_timeout">30s</value> <value name="slowlog">/var/log/php-fpm.log.slow</value> <value name="rlimit_files">1024</value> <value name="rlimit_core">0</value> <value name="chroot"></value> <value name="chdir"></value> <value name="catch_workers_output">yes</value> <value name="max_requests">500</value> ... I've tried increasing the max_children to 10 and it makes no difference. I've also tried setting it to 'dynamic' and setting max_children to 50, and start_server to '5' without any difference. I have tried using both 1 and 5 nginx worker processes. My fastcgi_params conf looks like: fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param REDIRECT_STATUS 200; Nginx logs the error as: [error] 3947#0: *10530 connect() failed (111: Connection refused) while connecting to upstream, client: 68.40.xxx.xxx, server: www.domain.com, request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com" PHP-FPM logs the follow at the time of the error: [NOTICE] pid 17161, fpm_unix_init_main(), line 255: getrlimit(nofile): max:1024, cur:1024 [NOTICE] pid 17161, fpm_event_init_main(), line 93: libevent: using epoll [NOTICE] pid 17161, fpm_init(), line 50: fpm is running, pid 17161 [DEBUG] pid 17161, fpm_children_make(), line 403: [pool default] child 17162 started [DEBUG] pid 17161, fpm_children_make(), line 403: [pool default] child 17163 started [DEBUG] pid 17161, fpm_children_make(), line 403: [pool default] child 17164 started [NOTICE] pid 17161, fpm_event_loop(), line 111: ready to handle connections My CPU usage maxes out around 10-15% when I recreate the issue. My Free mem (free -m) is 130MB I had this intermittent 502 Bad Gateway issue when in was using php5-cgi to service my php requests as well. Does anyone know how to fix this?

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• How to publish an ASP.NET MVC application to a free host

  - by Lirik

  Hi, I'm using a free web host (0000free) which supports ASP.NET MVC, but it uses Mono. This is the first time I deploy an MVC application, so I'm a little confused as to where I need to deploy it. I have Visual Studio 2010 and I used its Publish Feature (i.e. right click on the project name and click publish) and I tried several things: Publish method: FTP to the root folder. Publish method: FTP to the publich_html folder. Publish method: File System to the root folder. Publish method: File System to the publich_html folder. Publish method: File System to a local directory on my computer and then FTP to root and also tried the public_html folder. I went into the cPanel (control panel) to try and see if ASP.NET has to be added/enabled for my web site, but I didn't see anything there. I can't browse to Index.aspx nor can I redirect to it from index.html (as suggested from other posts on the host forum), right now I have a link from index.html to Index.aspx but it's not working either (see http://www.mydevarmy.com) I've also tried renaming Index.aspx to Default.aspx, but that doesn't work either. The search utility of the forum of the host is somewhat weak, so I use google to search their forum: http://www.google.com/search?q=publish+asp.net+site%3A0000free.com%2Fforum%2F&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a I've been reading Pro ASP.NET MVC Framework and they have a chapter about publishing, but it doesn't provide any specific information with respect to the location of publishing, this is all they say (and it's not very helpful in my case): Where Should I Put My Application? You can deploy your application to any folder on the server. When IIS first installs, it automatically creates a folder for a web site called Default Web Site at c:\Inetpub\wwwroot\, but you shouldn’t feel any obligation to put your application files there. It’s very common to host applications on a different physical drive from the operating system (e.g., in e:\websites\ example.com). It’s entirely up to you, and may be influenced by concerns such as how you plan to back up the server. Here is the exception I get when I try to view my Index.aspx page: Unrecognized attribute 'targetFramework'. (/home/devarmy/public_html/Web.config line 1) Description: HTTP 500. Error processing request. Stack Trace: System.Configuration.ConfigurationErrorsException: Unrecognized attribute 'targetFramework'. (/home/devarmy/public_html/Web.config line 1) at System.Configuration.ConfigurationElement.DeserializeElement (System.Xml.XmlReader reader, Boolean serializeCollectionKey) [0x00000] in <filename unknown>:0 at System.Configuration.ConfigurationSection.DoDeserializeSection (System.Xml.XmlReader reader) [0x00000] in <filename unknown>:0 at System.Configuration.ConfigurationSection.DeserializeSection (System.Xml.XmlReader reader) [0x00000] in <filename unknown>:0 at System.Configuration.Configuration.GetSectionInstance (System.Configuration.SectionInfo config, Boolean createDefaultInstance) [0x00000] in <filename unknown>:0 at System.Configuration.ConfigurationSectionCollection.get_Item (System.String name) [0x00000] in <filename unknown>:0 at System.Configuration.Configuration.GetSection (System.String path) [0x00000] in <filename unknown>:0 at System.Web.Configuration.WebConfigurationManager.GetSection (System.String sectionName, System.String path, System.Web.HttpContext context) [0x00000] in <filename unknown>:0 at System.Web.Configuration.WebConfigurationManager.GetSection (System.String sectionName, System.String path) [0x00000] in <filename unknown>:0 at System.Web.Configuration.WebConfigurationManager.GetWebApplicationSection (System.String sectionName) [0x00000] in <filename unknown>:0 at System.Web.Compilation.BuildManager.get_CompilationConfig () [0x00000] in <filename unknown>:0 at System.Web.Compilation.BuildManager.Build (System.Web.VirtualPath vp) [0x00000] in <filename unknown>:0 at System.Web.Compilation.BuildManager.GetCompiledType (System.Web.VirtualPath virtualPath) [0x00000] in <filename unknown>:0 at System.Web.Compilation.BuildManager.GetCompiledType (System.String virtualPath) [0x00000] in <filename unknown>:0 at System.Web.HttpApplicationFactory.InitType (System.Web.HttpContext context) [0x00000] in <filename unknown>:0

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• Blank black screen with cursor after login -- RHEL5

  - by Sean O.

  I have a RHEL 5 machine here which is a Dell Precision T3500. I'm an Ubuntu guy, but I'm having a heck of a time with this machine. After processing its first security update, we cannot log in via the gdm greeter. A new kernel was installed; then I installed the nVidia drivers for our Quadro NVS 295. I know the X configuration is valid because the gdm greeter does display; however, upon login all we can get is a blank, black screen with a cursor. I thought perhaps our python installation was corrupted but a reinstall via yum has not helped. I have searched & googled extensively for a potential fix for this and can find nothing. Below are outputs from uname, a tail of an error in /var/log/messages, and the Xorg.conf. Can anyone suggest a course of action? [sean@cheetah ~]$ uname -a Linux cheetah.*.* 2.6.18-308.8.1.el5 #1 SMP Fri May 4 16:43:02 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux [sean@cheetah ~]$ sudo tail /var/log/messages Jun 5 15:03:04 cheetah gconfd (sean-4592): Resolved address "xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only configuration source at position 2 Jun 5 15:03:05 cheetah hcid[3855]: Default passkey agent (:1.8, /org/bluez/applet) registered Jun 5 15:03:05 cheetah pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found Jun 5 15:03:05 cheetah last message repeated 2 times Jun 5 15:03:06 cheetah gconfd (sean-4592): Resolved address "xml:readwrite:/home/sean/.gconf" to a writable configuration source at position 0 Jun 5 15:03:06 cheetah setroubleshoot: [program.ERROR] exception ImportError: /usr/lib/libatk-1.0.so.0: undefined symbol: g_assertion_message_expr Traceback (most recent call last): File "/usr/bin/sealert", line 952, in ? from setroubleshoot.gui_utils import * File "/usr/lib/python2.4/site-packages/setroubleshoot/gui_utils.py", line 26, in ? import gtk File "/usr/lib64/python2.4/site-packages/gtk-2.0/gtk/__init__.py", line 48, in ? from gtk import _gtk ImportError: /usr/lib/libatk-1.0.so.0: undefined symbol: g_assertion_message_expr Jun 5 15:03:07 cheetah setroubleshoot: [program.ERROR] exception ImportError: /usr/lib/libatk-1.0.so.0: undefined symbol: g_assertion_message_expr Traceback (most recent call last): File "/usr/bin/sealert", line 952, in ? from setroubleshoot.gui_utils import * File "/usr/lib/python2.4/site-packages/setroubleshoot/gui_utils.py", line 26, in ? import gtk File "/usr/lib64/python2.4/site-packages/gtk-2.0/gtk/__init__.py", line 48, in ? from gtk import _gtk ImportError: /usr/lib/libatk-1.0.so.0: undefined symbol: g_assertion_message_expr Jun 5 15:03:08 cheetah pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found Jun 5 15:07:01 cheetah ntpd[4114]: synchronized to 64.16.211.38, stratum 3 Jun 5 15:07:01 cheetah ntpd[4114]: kernel time sync enabled 0001 [sean@cheetah ~]$ cat /etc/X11/xorg.conf # nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 295.53 ([email protected]) Sat May 12 00:34:20 PDT 2012 # Xorg configuration created by system-config-display Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/input/mice" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "Monitor" ### Comment all HorizSync and VertSync values to use DDC: ### Comment all HorizSync and VertSync values to use DDC: Identifier "Monitor0" ModelName "LCD Panel 1600x1200" HorizSync 31.5 - 74.7 VertRefresh 56.0 - 65.0 Option "dpms" EndSection Section "Device" Identifier "Videocard0" Driver "nvidia" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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• Trouble recovering MySQL InnoDB database after server crash

  - by Andy Shinn

  I had a server crash due to a broken iSCSI link (the filesystem went into read-only mode). After repairing the link and rebooting the machine (CentOS 5 / MySQL 5.1), the MySQL server would not start and gave the following error: 100603 19:11:46 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 100603 19:11:46 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... InnoDB: Warning: database page corruption or a failed InnoDB: file read of page 112541. InnoDB: Trying to recover it from the doublewrite buffer. InnoDB: Dump of the page: 100603 19:11:46 InnoDB: Page dump in ascii and hex (16384 bytes): lots of binary data 100603 19:11:46 InnoDB: Page checksum 953720272, prior-to-4.0.14-form checksum 2641912043 InnoDB: stored checksum 617821918, prior-to-4.0.14-form stored checksum 2080617765 InnoDB: Page lsn 115 2632899642, low 4 bytes of lsn at page end 2641594600 InnoDB: Page number (if stored to page already) 112541, InnoDB: space id (if created with = MySQL-4.1.1 and stored already) 0 InnoDB: Page may be an index page where index id is 0 616 InnoDB: Dump of corresponding page in doublewrite buffer: 100603 19:11:46 InnoDB: Page dump in ascii and hex (16384 bytes): more binary data 100603 19:11:46 InnoDB: Page checksum 908374788, prior-to-4.0.14-form checksum 824841363 InnoDB: stored checksum 912869634, prior-to-4.0.14-form stored checksum 2210927931 InnoDB: Page lsn 115 2635312169, low 4 bytes of lsn at page end 2633173354 InnoDB: Page number (if stored to page already) 112541, InnoDB: space id (if created with = MySQL-4.1.1 and stored already) 0 InnoDB: Page may be an index page where index id is 0 616 InnoDB: Also the page in the doublewrite buffer is corrupt. InnoDB: Cannot continue operation. InnoDB: You can try to recover the database with the my.cnf InnoDB: option: InnoDB: innodb_force_recovery=6 100603 19:11:46 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended Per the error message, I have tried setting set-variable=innodb_force_recovery=6 in the my.cnf to get to the data. This allows the MySQL server to start. But when I try to do a mysqldump of the database or a SELECT * INTO OUTFILE "filename" FROM broken_table; it seems to endlessly just export the same line over and over again. I have also tried http://code.google.com/p/innodb-tools/. But this tool fails with an error that 'blob' type is not supported. If I try to access the data using the PHP application it crashes MySQL: `100603 19:19:19 - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=8384512 read_buffer_size=131072 max_used_connections=2 max_threads=151 threads_connected=2 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 338317 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. thd: 0x15d33f0 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 0x453aff00 thread_stack 0x40000 /usr/libexec/mysqld(my_print_stacktrace+0x24) [0x874364] /usr/libexec/mysqld(handle_segfault+0x346) [0x5c9166] /lib64/libpthread.so.0 [0x3a6e40eb10] /usr/libexec/mysqld(rec_get_offsets_func+0x30) [0x7cc310] /usr/libexec/mysqld [0x7674d8] /usr/libexec/mysqld(btr_search_info_update_slow+0x638) [0x768d48] /usr/libexec/mysqld(btr_cur_search_to_nth_level+0xc7d) [0x75f86d] /usr/libexec/mysqld [0x7dd1c1] /usr/libexec/mysqld(row_search_for_mysql+0x18b0) [0x7e03d0] /usr/libexec/mysqld(ha_innobase::general_fetch(unsigned char*, unsigned int, unsigned int)+0x7c) [0x7526fc] /usr/libexec/mysqld(handler::read_multi_range_next(st_key_multi_range**)+0x29) [0x6aed09] /usr/libexec/mysqld(QUICK_RANGE_SELECT::get_next()+0x194) [0x69a964] /usr/libexec/mysqld [0x6aafe9] /usr/libexec/mysqld(sub_select(JOIN*, st_join_table*, bool)+0x56) [0x635196] /usr/libexec/mysqld [0x63f9cd] /usr/libexec/mysqld(JOIN::exec()+0x950) [0x6497c0] /usr/libexec/mysqld(mysql_select(THD*, Item*, TABLE_LIST*, unsigned int, List&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsign ed long long, select_result*, st_select_lex_unit*, st_select_lex*)+0x17b) [0x64b34b] /usr/libexec/mysqld(handle_select(THD*, st_lex*, select_result*, unsigned long)+0x169) [0x64bc79] /usr/libexec/mysqld [0x5d34b6] /usr/libexec/mysqld(mysql_execute_command(THD*)+0x4e5) [0x5d6b45] /usr/libexec/mysqld(mysql_parse(THD*, char const*, unsigned int, char const)+0x211) [0x5dc321] /usr/libexec/mysqld(dispatch_command(enum_server_command, THD*, char*, unsigned int)+0x10b8) [0x5dd3f8] /usr/libexec/mysqld(do_command(THD*)+0xe6) [0x5dd9e6] /usr/libexec/mysqld(handle_one_connection+0x73d) [0x5d036d] /lib64/libpthread.so.0 [0x3a6e40673d] /lib64/libc.so.6(clone+0x6d) [0x3a6d4d3d1d] Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd-query at 0x15de5e0 = SELECT DISTINCT count(DISTINCT i.itemid) as rowscount,i.hostid FROM items i WHERE ((i.itemid BETWEEN 000000000000000 AND 0999999 99999999)) AND i.type<9 AND (i.hostid IN (10017,10047,10050,10054,10056,10059,10062,10063,10064,10065,10066,10067,10068,10069,10070,10071,10072,10073,100 74,10075,10076,10077,10078,10079,10080,10081,10082,10084,10088,10089,10090,10091,10092,10093,10094,10095,10096,10097,10098,10099,10100,10101,10102,10103,10 104,10105,10106,10107,10108,10109)) GROUP BY i.hostid thd-thread_id=3 thd-killed=NOT_KILLED The manual page at contains information that should help you find out what is causing the crash. 100603 19:19:19 mysqld_safe Number of processes running now: 0 100603 19:19:19 mysqld_safe mysqld restarted` Before recovering form an older backup as a last resort I am looking for anymore suggestions. Thanks!

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• Tuning performance of Ubuntu 10.04 on Compaq Evo W4000.

  - by Fantomas

  Hi, I got this computer free and installed Ubuntu 10.04 on it + updates, plus followed the following tutorial all the way: http://www.unixmen.com/linux-tutorials/937-things-to-do-after-installing-ubuntu-1004-lts-lucid-lynx I love the Docky which comes with it, but the computer has been running rather slowly. The System: kernel 2.6.32-22-generic Gnome 2.30.0 (I like Gnome!) Memory: 1GB Processor: Intel (R) Pentium (R) 4 CPU 1700 MHz (needless to say, it is 32 bit). I think I dedicated 128 Mb to video memory while installing, but cannot find this setting now. I did also install an NVidia driver for the 3D card, so I probably want to reclaim that memory back. I want to trim the fat but I also want to keep some of the sex appeal of Ubuntu 10.04. I will gift this computer to a friend, who will use it for Internet, music, videos, word processing, Skype and instant messaging - he is non-technical, so this hardware and Linux should work for him; I just need to speed it up while keeping the good software and having a nice UI. I sort of know my way around Linux, but not that well. Feel free to ask me to run particular commands if you want more info. For starters, here are the services below. Which ones can I kill and how? What else can go? There is no need to run ssh or ftp or http or ntp servers. As I said before, this computer is for non-technical person. There is also absolutely no bluetooth or wireless networking needed - it will feed off a regular ethernet cable. What I do not want to do is reinstall some other distro or recompile a kernel. I want to make it 80% perfect spending 20% of the energy :) Thanks! $ service --status-all [ ? ] acpi-support [ ? ] acpid [ ? ] alsa-mixer-save [ ? ] anacron [ - ] apparmor [ ? ] apport [ ? ] atd [ ? ] avahi-daemon [ ? ] binfmt-support [ - ] bluetooth [ - ] bootlogd [ - ] brltty [ ? ] console-setup [ ? ] cron [ + ] cups [ ? ] dbus [ ? ] dmesg [ ? ] dns-clean [ ? ] failsafe-x [ - ] fancontrol [ ? ] gdm [ - ] grub-common [ ? ] hostname [ ? ] hwclock [ ? ] hwclock-save [ ? ] irqbalance [ - ] kerneloops [ ? ] killprocs [ - ] lm-sensors [ ? ] module-init-tools [ ? ] network-interface [ ? ] network-interface-security [ ? ] network-manager [ ? ] networking [ ? ] ondemand [ ? ] pcmciautils [ ? ] plymouth [ ? ] plymouth-log [ ? ] plymouth-splash [ ? ] plymouth-stop [ ? ] pppd-dns [ ? ] procps [ + ] pulseaudio [ ? ] rc.local [ - ] rsync [ ? ] rsyslog [ - ] saned [ ? ] screen-cleanup [ ? ] sendsigs [ ? ] speech-dispatcher [ ? ] stop-bootlogd [ ? ] stop-bootlogd-single [ ? ] udev [ ? ] udev-finish [ ? ] udevmonitor [ ? ] udevtrigger [ ? ] ufw [ ? ] umountfs [ ? ] umountnfs.sh [ ? ] umountroot [ ? ] unattended-upgrades [ - ] urandom [ + ] winbind [ ? ] wpa-ifupdown [ - ] x11-common

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• Why is IIS Anonymous authentication being used with administrative UNC drive access?

  - by Mark Lindell

  My account is local administrator on my machine. If I try to browse to a non-existent drive letter on my own box using a UNC path name: \mymachine\x$ my account would get locked out. I would also get the following warning (Event ID 100, Type “Warning”) 5 times under the “System” group in Event Viewer on my box: The server was unable to logon the Windows NT account 'ourdomain\myaccount' due to the following error: Logon failure: unknown user name or bad password. I would also get the following warning 3 times: The server was unable to logon the Windows NT account 'ourdomain\myaccount' due to the following error: The referenced account is currently locked out and may not be logged on to. On the domain controller, Event ID 680 of type “Failure Audit” would appear 4 times under the “Security” group in Event Viewer: Logon attempt by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0 Logon account: myaccount Followed by Event ID 644: User Account Locked Out: Target Account Name: myaccount Target Account ID: OURDOMAIN\myaccount Caller Machine Name: MYMACHINE Caller User Name: STAN$ Caller Domain: OURDOMAIN Caller Logon ID: (0x0,0x3E7) Followed by another 4 errors having Event ID 680. Strangely, every time I tried to browse to the UNC path I would be prompted for a user name and password, the above errors would be written to the log, and my account would be locked out. When I hit “Cancel” in response to the user name/password prompt, the following message box would display: Windows cannot find \mymachine\x$. Check the spelling and try again, or try searching for the item by clicking the Start button and then clicking Search. I checked with others in the group using XP and they only got the above message box when browsing to a “bad” drive letter on their box. No one else was prompted for a user name/password and then locked out. So, every time I tried to browse to the “bad” drive letter, behind the scenes XP was trying to login 8 times using bad credentials (or, at least a bad password as the login was correct), causing my account to get locked out on the 4th try. Interestingly, If I tried browsing to a “good” drive such as “c$” it would work fine. As a test, I tried logging on to my box as a different login and browsing the “bad” UNC path. Strangely, my “ourdomain\myaccount” account was getting locked out – not the one I was logged in as! I was totally confused as to why the credentials for the other login were being passed. After much Googling, I found a link referring to some IIS settings I was vaguely familiar with from the past but could not see how they would affect this issue. It was related to the IIS directory security setting “Anonymous access and authentication control” located under: Control Panel/Administrative Tools/Computer Management/Services and Applications/Internet Information Services/Web Sites/Default Web Site/Properties/Directory Security/Anonymous access and authentication control/Edit/Password I found no indication while scouring the Internet that this property was related to my UNC problem. But, I did notice that this property was set to my domain user name and password. And, my password did age recently but I had not reset the password accordingly for this property. Sure enough, keying in the new password corrected the problem. I was no longer prompted for a user name/password when browsing the UNC path and the account lock-outs ceased. Now, a couple of questions: Why would an IIS setting affect the browsing of a UNC path on a local box? Why had I not encountered this problem before? My password has aged several times and I’ve never encountered this problem. And, I can’t remember the last time I updated the “Anonymous access” IIS password it’s been so long. I’ve run the script after a password reset before and never had my account locked-out due to the UNC problem (the script accesses UNC paths as a normal part of its processing). Windows Update did install “Cumulative Security Update for Internet Explorer 7 for Windows XP (KB972260)” on my box on 7/29/2009. I wonder if this is responsible.

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• Ubuntu, No wireless networks found after correctly installed madwifi

  - by Peter

  Hi, I just installed madwifi on my MSI laptop with an Atheros AR5001 wifi card & Lucid. As far as I can see and according to System - Administration - Hardware drivers the install was successful and the card + driver is up and running. However, I don't see any wireless network (my windows PC can see about 5 wireless networks). I tried it with the network manager applet as well as with wicd. If I try to connect to "Hidden Wireless Network" via nm-applet, it will start to connect for a while but is unable too (although I supply it with the correct WEP settings & key) So, I'm unable to use my wireless network. What am i doing wrong? Some information about my system: iwconfig lo no wireless extensions. eth0 no wireless extensions. wifi0 no wireless extensions. ath0 IEEE 802.11g ESSID:"" Mode:Managed Frequency:2.437 GHz Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:17 dBm Sensitivity=1/1 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality=0/70 Signal level=-96 dBm Noise level=-96 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 pan0 no wireless extensions. ifconfig ath0 Link encap:Ethernet HWaddr 00:15:af:cf:e2:ca inet6 addr: fe80::215:afff:fecf:e2ca/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) eth0 Link encap:Ethernet HWaddr 00:21:85:4d:82:78 inet addr:192.168.2.101 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::221:85ff:fe4d:8278/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3800 errors:0 dropped:0 overruns:0 frame:0 TX packets:2944 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3940261 (3.9 MB) TX bytes:525218 (525.2 KB) Interrupt:27 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:720 (720.0 B) TX bytes:720 (720.0 B) wifi0 Link encap:UNSPEC HWaddr 00-15-AF-CF-E2-CA-00-00-00-00-00-00-00-00-00-00 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:3497 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:280 RX bytes:0 (0.0 B) TX bytes:179947 (179.9 KB) Interrupt:16 lshw -C network *-network description: Wireless interface product: AR5001 Wireless Network Adapter vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:02:00.0 logical name: wifi0 version: 01 serial: 00:15:af:cf:e2:ca width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list logical ethernet physical wireless configuration: broadcast=yes driver=ath_pci latency=0 multicast=yes wireless=IEEE 802.11g resources: irq:16 memory:fd7f0000-fd7fffff *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:05:00.0 logical name: eth0 version: 01 serial: 00:21:85:4d:82:78 size: 100MB/s capacity: 1GB/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.2.101 latency=0 link=yes multicast=yes port=MII speed=100MB/s resources: irq:27 ioport:c800(size=256) memory:fe2ff000-fe2fffff memory:fe2c0000-fe2dffff(prefetchable) lspci 00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge 00:01.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (Internal gfx) 00:04.0 PCI bridge: ATI Technologies Inc Device 7914 00:06.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI Express Port 2) 00:07.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI Express Port 3) 00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA 00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0) 00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1) 00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2) 00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3) 00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4) 00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI) 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14) 00:14.1 IDE interface: ATI Technologies Inc SB600 IDE 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) 00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon X1200 Series] 01:05.2 Audio device: ATI Technologies Inc Radeon X1200 Series Audio Controller 02:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 06:04.0 CardBus bridge: O2 Micro, Inc. OZ711MP1/MS1 MemoryCardBus Controller (rev 21) 06:04.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01) 06:04.3 Bridge: O2 Micro, Inc. Integrated MS/xD Controller (rev 01) 06:04.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) less /proc/modules | grep ath ath_rate_sample 11476 1 - Live 0xf812b000 ath_pci 193197 0 - Live 0xf85c3000 wlan 222892 5 wlan_wep,wlan_scan_sta,ath_rate_sample,ath_pci, Live 0xf8537000 ath_hal 398604 3 ath_rate_sample,ath_pci, Live 0xf8480000 I've been at this for hours now, also tried ndiswrapper and ath5k drivers with no luck, and really could use some help. Cheers.

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• simple and reliable centralized logging inside Amazon VPC

  - by Nakedible

  I need to set up centralized logging for a set of servers (10-20) in an Amazon VPC. The logging should be as to not lose any log messages in case any single server goes offline - or in the case that an entire availability zone goes offline. It should also tolerate packet loss and other normal network conditions without losing or duplicating messages. It should store the messages durably, at the minimum on two different EBS volumes in two availability zones, but S3 is a good place as well. It should also be realtime so that the messages arrive within seconds of their generation to two different availability zones. I also need to sync logfiles not generated via syslog, so a syslog-only centralized logging solution would not fulfill all the needs, although I guess that limitation could be worked around. I have already reviewed a few solutions, and I will list them here: Flume to Flume to S3: I could set up two logservers as Flume hosts which would store log messages either locally or in S3, and configure all the servers with Flume to send all messages to both servers, using the end-to-end reliability options. That way the loss of a single server shouldn't cause lost messages and all messages would arrive in two availability zones in realtime. However, there would need to be some way to join the logs of the two servers, deduplicating all the messages delivered to both. This could be done by adding a unique id on the sending side to each message and then write some manual deduplication runs on the logfiles. I haven't found an easy solution to the duplication problem. Logstash to Logstash to ElasticSearch: I could install Logstash on the servers and have them deliver to a central server via AMQP, with the durability options turned on. However, for this to work I would need to use some of the clustering capable AMQP implementations, or fan out the deliver just as in the Flume case. AMQP seems to be a yet another moving part with several implementations and no real guidance on what works best this sort of setup. And I'm not entirely convinced that I could get actual end-to-end durability from logstash to elasticsearch, assuming crashing servers in between. The fan-out solutions run in to the deduplication problem again. The best solution that would seem to handle all the cases, would be Beetle, which seems to provide high availability and deduplication via a redis store. However, I haven't seen any guidance on how to set this up with Logstash and Redis is one more moving part again for something that shouldn't be terribly difficult. Logstash to ElasticSearch: I could run Logstash on all the servers, have all the filtering and processing rules in the servers themselves and just have them log directly to a removet ElasticSearch server. I think this should bring me reliable logging and I can use the ElasticSearch clustering features to share the database transparently. However, I am not sure if the setup actually survives Logstash restarts and intermittent network problems without duplicating messages in a failover case or similar. But this approach sounds pretty promising. rsync: I could just rsync all the relevant log files to two different servers. The reliability aspect should be perfect here, as the files should be identical to the source files after a sync is done. However, doing an rsync several times per second doesn't sound fun. Also, I need the logs to be untamperable after they have been sent, so the rsyncs would need to be in append-only mode. And log rotations mess things up unless I'm careful. rsyslog with RELP: I could set up rsyslog to send messages to two remote hosts via RELP and have a local queue to store the messages. There is the deduplication problem again, and RELP itself might also duplicate some messages. However, this would only handle the things that log via syslog. None of these solutions seem terribly good, and they have many unknowns still, so I am asking for more information here from people who have set up centralized reliable logging as to what are the best tools to achieve that goal.

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• Xen DomU on DRBD device: barrier errors

  - by Halfgaar

  I'm testing setting up a Xen DomU with a DRBD storage for easy failover. Most of the time, immediatly after booting the DomU, I get an IO error: [ 3.153370] EXT3-fs (xvda2): using internal journal [ 3.277115] ip_tables: (C) 2000-2006 Netfilter Core Team [ 3.336014] nf_conntrack version 0.5.0 (3899 buckets, 15596 max) [ 3.515604] init: failsafe main process (397) killed by TERM signal [ 3.801589] blkfront: barrier: write xvda2 op failed [ 3.801597] blkfront: xvda2: barrier or flush: disabled [ 3.801611] end_request: I/O error, dev xvda2, sector 52171168 [ 3.801630] end_request: I/O error, dev xvda2, sector 52171168 [ 3.801642] Buffer I/O error on device xvda2, logical block 6521396 [ 3.801652] lost page write due to I/O error on xvda2 [ 3.801755] Aborting journal on device xvda2. [ 3.804415] EXT3-fs (xvda2): error: ext3_journal_start_sb: Detected aborted journal [ 3.804434] EXT3-fs (xvda2): error: remounting filesystem read-only [ 3.814754] journal commit I/O error [ 6.973831] init: udev-fallback-graphics main process (538) terminated with status 1 [ 6.992267] init: plymouth-splash main process (546) terminated with status 1 The manpage of drbdsetup says that LVM (which I use) doesn't support barriers (better known as tagged command queuing or native command queing), so I configured the drbd device not to use barriers. This can be seen in /proc/drbd (by "wo:f, meaning flush, the next method drbd chooses after barrier): 3: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r---- ns:2160152 nr:520204 dw:2680344 dr:2678107 al:3549 bm:9183 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0 And on the other host: 3: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r---- ns:0 nr:2160152 dw:2160152 dr:0 al:0 bm:8052 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0 I also enabled the option disable_sendpage, as per the drbd docs: cat /sys/module/drbd/parameters/disable_sendpage Y I also tried adding barriers=0 to fstab as mount option. Still it sometimes says: [ 58.603896] blkfront: barrier: write xvda2 op failed [ 58.603903] blkfront: xvda2: barrier or flush: disabled I don't even know if ext3 has a nobarrier option. And, because only one of my storage systems is battery backed, it would not be smart anyway. Why does it still compain about barriers when I disabled that? Both host are: Debian: 6.0.4 uname -a: Linux 2.6.32-5-xen-amd64 drbd: 8.3.7 Xen: 4.0.1 Guest: Ubuntu 12.04 LTS uname -a: Linux 3.2.0-24-generic pvops drbd resource: resource drbdvm { meta-disk internal; device /dev/drbd3; startup { # The timeout value when the last known state of the other side was available. 0 means infinite. wfc-timeout 0; # Timeout value when the last known state was disconnected. 0 means infinite. degr-wfc-timeout 180; } syncer { # This is recommended only for low-bandwidth lines, to only send those # blocks which really have changed. #csums-alg md5; # Set to about half your net speed rate 60M; # It seems that this option moved to the 'net' section in drbd 8.4. (later release than Debian has currently) verify-alg md5; } net { # The manpage says this is recommended only in pre-production (because of its performance), to determine # if your LAN card has a TCP checksum offloading bug. #data-integrity-alg md5; } disk { # Detach causes the device to work over-the-network-only after the # underlying disk fails. Detach is not default for historical reasons, but is # recommended by the docs. # However, the Debian defaults in drbd.conf suggest the machine will reboot in that event... on-io-error detach; # LVM doesn't support barriers, so disabling it. It will revert to flush. Check wo: in /proc/drbd. If you don't disable it, you get IO errors. no-disk-barrier; } on host1 { # universe is a VG disk /dev/universe/drbdvm-disk; address 10.0.0.1:7792; } on host2 { # universe is a VG disk /dev/universe/drbdvm-disk; address 10.0.0.2:7792; } } DomU cfg: bootloader = '/usr/lib/xen-default/bin/pygrub' vcpus = '2' memory = '512' # # Disk device(s). # root = '/dev/xvda2 ro' disk = [ 'phy:/dev/drbd3,xvda2,w', 'phy:/dev/universe/drbdvm-swap,xvda1,w', ] # # Hostname # name = 'drbdvm' # # Networking # # fake IP for posting vif = [ 'ip=1.2.3.4,mac=00:16:3E:22:A8:A7' ] # # Behaviour # on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' In my test setup: the primary host's storage is 9650SE SATA-II RAID PCIe with battery. The secondary is software RAID1. Isn't DRBD+Xen widely used? With these problems, it's not going to work.

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• Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed!

  - by meder

  I restarted my VPS box ( manually/hard restart ) and ever since, mysql fails to start for whatever reason. I did a tail /var/log/syslog and I get this: Feb 20 11:49:33 kyrgyznews mysqld[11461]: ) ;InnoDB: End of page dump 575 Feb 20 11:49:33 kyrgyznews mysqld[11461]: 110220 11:49:33 InnoDB: Page checksum 1045788239, prior-to-4.0.14-form checksum 236985105 576 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: stored checksum 1178062585, prior-to-4.0.14-form stored checksum 236985105 577 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: Page lsn 0 10651, low 4 bytes of lsn at page end 10651 578 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: Page number (if stored to page already) 3, 579 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: space id (if created with >= MySQL-4.1.1 and stored already) 0 580 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: Database page corruption on disk or a failed 581 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: file read of page 3. 582 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: You may have to recover from a backup. 583 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: It is also possible that your operating 584 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: system has corrupted its own file cache 585 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: and rebooting your computer removes the 586 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: error. 587 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: If the corrupt page is an index page 588 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: you can also try to fix the corruption 589 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: by dumping, dropping, and reimporting 590 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: the corrupt table. You can use CHECK 591 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: TABLE to scan your table for corruption. 592 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: See also InnoDB: http://dev.mysql.com/doc/refman/5.0/en/forcing-recovery.html 593 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: about forcing recovery. 594 Feb 20 11:49:33 kyrgyznews mysqld[11461]: InnoDB: Ending processing because of a corrupt database page. 595 Feb 20 11:49:33 kyrgyznews mysqld_safe[11469]: ended 596 Feb 20 11:49:47 kyrgyznews /etc/init.d/mysql[12228]: 0 processes alive and '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in 597 Feb 20 11:49:47 kyrgyznews /etc/init.d/mysql[12228]: ^G/usr/bin/mysqladmin: connect to server at 'localhost' failed 598 Feb 20 11:49:47 kyrgyznews /etc/init.d/mysql[12228]: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' 599 Feb 20 11:49:47 kyrgyznews /etc/init.d/mysql[12228]: Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists! 600 Feb 20 11:49:47 kyrgyznews /etc/init.d/mysql[12228]: 601 Feb 20 11:49:56 kyrgyznews mysqld_safe[13437]: started 602 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: The log sequence number in ibdata files does not match 603 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: the log sequence number in the ib_logfiles! 604 Feb 20 11:49:56 kyrgyznews mysqld[13440]: 110220 11:49:56 InnoDB: Database was not shut down normally! 605 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: Starting crash recovery. 606 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: Reading tablespace information from the .ibd files... 607 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: Restoring possible half-written data pages from the doublewrite 608 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: buffer... 609 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: Database page corruption on disk or a failed 610 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: file read of page 3. 611 Feb 20 11:49:56 kyrgyznews mysqld[13440]: InnoDB: You may have to recover from a backup. I have looked at the page it referenced, http://dev.mysql.com/doc/refman/5.0/en/forcing-innodb-recovery.html, but before messing with any settings I was wondering what experienced DBAs would suggest doing? Is there any harm in forcing the recovery? PS - I did not make any updates to mysql. Version is mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2.

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• Did a recent WinXP update break CD/DVD read speeds? SP2/SP3

  - by quack quixote

  I have two systems with fresh installations of Windows XP Pro SP3 (SP3 slipstreamed into the installer; fully updated after install). One's a refurbished 2.4GHz Pentium4 system; the other is a new 1.6GHz Atom330 build. Both have brand-new dual-layer CD/DVD burners (one's a LiteOn IDE, the other an LG SATA). Both take a really looooong time to read a single-layer DVD in Windows with Cygwin tools. Specifically, 40 minutes or more. I burn backup data to single-layer DVD+/-R and use MD5 hashes for data verification (made with the standard md5sum tool in Unix or Cygwin). The hashes are burned to disc with the data files, and I use this command to verify: $ cd /path/to/disc/mountpoint ; time md5sum -c < md5.txt Here's how long that takes to run on a full single-layer DVD+/-R disc: Old system (WinXP SP2, 1.8GHz Athlon 2500+, last summer): ~10 minutes Old system (Ubuntu 9.04, 1.8GHz Athlon 2500+): ~10 minutes Old system (Debian 5, dual 550MHz P3): ~10 minutes New Pentium4 system (running Ubuntu 9.04): ~5 minutes New Pentium4 system (running WinXP SP3, file copy from Win Explorer): ~6 minutes New Atom330 system (running WinXP SP3, file copy from Win Explorer): ~6 minutes Now the weird stuff: Old system (WinXP SP2, 1.8GHz Athlon 2500+, today): ~25 minutes New Pentium4 system (running WinXP SP3, read from Cygwin): ~40-50 minutes (?!!) New Atom330 system (running WinXP SP3, read from Cygwin): ~40 minutes (can do it in ~30 minutes ...if i have another program spin up the drive first) Since both systems will copy files in 6 minutes using Windows Explorer, I know it's not a hardware problem. Windows just never spins up the drive during the Cygwin read, so it stays super-slow the whole time. Other programs like EAC and DVD Decrypter seem to spin up the disc just fine during their processing. DMA is enabled on both systems. (Can confirm in Windows' Device Manager on the Atom330, not on the P4.) Nero's DriveSpeed tool doesn't seem to have any effect. Copy times are comparable from commandline with Windows' xcopy. Copying with Cygwin's cp looks more like the problem state -- it will spin up the drive for a short time, never reaches full speed, and lets it spin back down again for most of the copy. What I need is to get full read speeds from Cygwin. Is this a known issue with SP3 or some other recent Windows update? Any other ideas? Update: More testing; Windows will spin up the drive when data is copied with Windows tools, but not when read in place or copied with Cygwin tools. It doesn't make sense to me that Windows spins up the drive for copying, but not for other reads. Might be more of a Cygwin problem? Update 2: GUI activity is sluggish during the problem state -- during the Cygwin verifies, there's a slight but noticable delay when dragging windows or icons around on the desktop, switching windows, Alt-Tabbing through open applications, opening new windows, etc. It reminds me of the delay when opening a Windows Explorer window on My Computer just after inserting a DVD. I've tried updating Cygwin (from 1.5.x to 1.7.x), but no change in the problem behavior. I've also noticed this issue occurs on WinXP SP2, but it's not exactly the same -- some spin-up occurs, so the read happens in ~25-30 minutes instead of 40+. The SP2 system used to run the verifies in ~10 minutes, and when it first changed (not sure exactly when, maybe in late November or early December 2009) I thought it was dying hardware. This is why I suspect an official update of breaking this functionality; this has worked for years on that SP2 box.

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• How to install pip/easy_install on debian 6 for python3.2

  - by atomAltera

  I'm trying to install pip or setup tools form python 3.2 in debian 6. First case: apt-get install python3-pip...OK python3 easy_install.py webob Searching for webob Reading http://pypi.python.org/simple/webob/ Reading http://webob.org/ Reading http://pythonpaste.org/webob/ Best match: WebOb 1.2.2 Downloading http://pypi.python.org/packages/source/W/WebOb/WebOb-1.2.2.zip#md5=de0f371b46554709ce5b93c088a11cae Processing WebOb-1.2.2.zip Traceback (most recent call last): File "easy_install.py", line 5, in <module> main() File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1931, in main with_ei_usage(lambda: File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1912, in with_ei_usage return f() File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1935, in <lambda> distclass=DistributionWithoutHelpCommands, **kw File "/usr/local/lib/python3.2/distutils/core.py", line 148, in setup dist.run_commands() File "/usr/local/lib/python3.2/distutils/dist.py", line 917, in run_commands self.run_command(cmd) File "/usr/local/lib/python3.2/distutils/dist.py", line 936, in run_command cmd_obj.run() File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 368, in run self.easy_install(spec, not self.no_deps) File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 608, in easy_install return self.install_item(spec, dist.location, tmpdir, deps) File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 638, in install_item dists = self.install_eggs(spec, download, tmpdir) File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 799, in install_eggs unpack_archive(dist_filename, tmpdir, self.unpack_progress) File "/usr/lib/python3/dist-packages/setuptools/archive_util.py", line 67, in unpack_archive driver(filename, extract_dir, progress_filter) File "/usr/lib/python3/dist-packages/setuptools/archive_util.py", line 154, in unpack_zipfile data = z.read(info.filename) File "/usr/local/lib/python3.2/zipfile.py", line 891, in read with self.open(name, "r", pwd) as fp: File "/usr/local/lib/python3.2/zipfile.py", line 980, in open close_fileobj=not self._filePassed) File "/usr/local/lib/python3.2/zipfile.py", line 489, in __init__ self._decompressor = zlib.decompressobj(-15) AttributeError: 'NoneType' object has no attribute 'decompressobj' Second case: from http://pypi.python.org/pypi/distribute#installation-instructions python3 distribute_setup.py Downloading http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz Extracting in /tmp/tmpv6iei2 Traceback (most recent call last): File "distribute_setup.py", line 515, in <module> main(sys.argv[1:]) File "distribute_setup.py", line 511, in main _install(tarball, _build_install_args(argv)) File "distribute_setup.py", line 73, in _install tar = tarfile.open(tarball) File "/usr/local/lib/python3.2/tarfile.py", line 1746, in open raise ReadError("file could not be opened successfully") tarfile.ReadError: file could not be opened successfully Third case: from http://pypi.python.org/pypi/distribute#installation-instructions tar -xzvf distribute-0.6.28.tar.gz cd distribute-0.6.28 python3 setup.py install Before install bootstrap. Scanning installed packages No setuptools distribution found running install running bdist_egg running egg_info writing distribute.egg-info/PKG-INFO writing top-level names to distribute.egg-info/top_level.txt writing dependency_links to distribute.egg-info/dependency_links.txt writing entry points to distribute.egg-info/entry_points.txt reading manifest file 'distribute.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'distribute.egg-info/SOURCES.txt' installing library code to build/bdist.linux-x86_64/egg running install_lib running build_py copying distribute.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO copying distribute.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO copying distribute.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO copying distribute.egg-info/entry_points.txt -> build/bdist.linux-x86_64/egg/EGG-INFO copying distribute.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO creating 'dist/distribute-0.6.28-py3.2.egg' and adding 'build/bdist.linux-x86_64/egg' to it Traceback (most recent call last): File "setup.py", line 220, in <module> scripts = scripts, File "/usr/local/lib/python3.2/distutils/core.py", line 148, in setup dist.run_commands() File "/usr/local/lib/python3.2/distutils/dist.py", line 917, in run_commands self.run_command(cmd) File "/usr/local/lib/python3.2/distutils/dist.py", line 936, in run_command cmd_obj.run() File "build/src/setuptools/command/install.py", line 73, in run self.do_egg_install() File "build/src/setuptools/command/install.py", line 93, in do_egg_install self.run_command('bdist_egg') File "/usr/local/lib/python3.2/distutils/cmd.py", line 313, in run_command self.distribution.run_command(command) File "/usr/local/lib/python3.2/distutils/dist.py", line 936, in run_command cmd_obj.run() File "build/src/setuptools/command/bdist_egg.py", line 241, in run dry_run=self.dry_run, mode=self.gen_header()) File "build/src/setuptools/command/bdist_egg.py", line 542, in make_zipfile z = zipfile.ZipFile(zip_filename, mode, compression=compression) File "/usr/local/lib/python3.2/zipfile.py", line 689, in __init__ "Compression requires the (missing) zlib module") RuntimeError: Compression requires the (missing) zlib module zlib1g-dev installed Help me please

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• Motion - can't get streaming working from a webcam

  - by Emmanuel Brunet

  I'm trying to record a video stream from my Tenvis IP camera with motion 3.2.12 on Debian 7.5. I used the standard debian package with sudo apt-get install motion Assume my DNS IP cam is webcam, user : admin, password : password /etc/motion/motion.conf Bellow are my configuration file settings : netcam_url http://webcam/videostream.cgi netcam_userpass admin:password target_dir /media/videos/log/motion # The mini-http server listens to this port for requests (default: 0 = disabled) webcam_port 1234 ffmpeg_cap_new on ffmpeg_video_codec mpeg4 output_motion off snapshot_interval 0 # Quality of the jpeg (in percent) images produced (default: 50) webcam_quality 50 # Output frames at 1 fps when no motion is detected and increase to the # rate given by webcam_maxrate when motion is detected (default: off) webcam_motion on # Maximum framerate for webcam streams (default: 1) webcam_maxrate 15 # Restrict webcam connections to localhost only (default: on) webcam_localhost on # Limits the number of images per connection (default: 0 = unlimited) # Number can be defined by multiplying actual webcam rate by desired number of seconds # Actual webcam rate is the smallest of the numbers framerate and webcam_maxrate webcam_limit 0 control_port 8080 control_authentication admin:password Issue #1 when I try display http:/localhost:1234 the browser looks frozen, no HTTP 404 received but it stills waiting for data it seems .. Issue #2 in the output directory motion writes a lot of jpeg snapshots althought I just want to have several video sequenced files. Log I run motion in interactive mode in a terminal, here is the ouput root@mercure:/etc/motion# motion -c motion-1.0.conf [0] Processing thread 0 - config file motion-1.0.conf [0] Motion 3.2.12 Started [0] ffmpeg LIBAVCODEC_BUILD 3482368 LIBAVFORMAT_BUILD 3478785 [0] Thread 1 is from motion-1.0.conf [0] motion-httpd/3.2.12 running, accepting connections [0] motion-httpd: waiting for data on port TCP 8080 [1] Thread 1 started [1] Resizing pre_capture buffer to 1 items [1] Started stream webcam server in port 1234 [1] avcodec_open - could not open codec: Operation now in progress [1] ffopen_open error creating (new) file [~/tmp/motion/01-20140603165303.avi]: Operation now in progress [1] File of type 1 saved to: ~/tmp/motion/01-20140603165303-01.jpg [1] Thread exiting [1] Calling vid_close() from motion_cleanup [1] vid_close: calling netcam_cleanup [1] netcam camera handler: finish set, exiting [0] Motion thread 1 restart [1] Thread 1 started [1] Resizing pre_capture buffer to 1 items [1] Started stream webcam server in port 1234 [1] avcodec_open - could not open codec: Resource temporarily unavailable [1] ffopen_open error creating (new) file [~/tmp/motion/01-20140603165329.avi]: Resource temporarily unavailable [1] File of type 1 saved to: ~/tmp/motion/01-20140603165329-00.jpg [1] Thread exiting [1] Calling vid_close() from motion_cleanup [1] vid_close: calling netcam_cleanup [1] netcam camera handler: finish set, exiting [0] Motion thread 1 restart [1] Thread 1 started [1] Resizing pre_capture buffer to 1 items [1] Started stream webcam server in port 1234 [1] avcodec_open - could not open codec: Connection reset by peer [1] ffopen_open error creating (new) file [~/tmp/motion/01-20140603165355.avi]: Connection reset by peer [1] File of type 1 saved to: ~/tmp/motion/01-20140603165355-06.jpg [1] Thread exiting [1] Calling vid_close() from motion_cleanup [1] vid_close: calling netcam_cleanup [0] httpd - Finishing [0] httpd Closing [0] httpd thread exit [1] netcam camera handler: finish set, exiting [0] Motion thread 1 restart [1] Thread 1 started [1] Resizing pre_capture buffer to 1 items [1] Started stream webcam server in port 1234 It doesn't find the codec ... avcodec_open - could not open codec: Operation now in progress I've changed fmpeg_video_codec from mpeg4 to swf the result is the same. When using flv format motion writes a lot of .jpg image but I can't see anything at http://localhost:1234 [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-00.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-01.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-02.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-03.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-04.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-05.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171035-06.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171036-00.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171036-01.jpg [1] File of type 1 saved to: ~/tmp/motion/01-20140603171036-02.jpg Any idea just to get the video stream recoded on my local disk ?

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• Rails app deployment challenge, not finding database table in production.log

  - by Stefan M

  I'm trying to setup PasswordPusher as my first ruby app ever. Building and running the webrick server as instructed in README works fine. It was only when I tried to add Apache ProxyPass and ProxyPassReverse that the page load slowed down to several minutes. So I gave mod_passenger a whirl but now it's unable to find the password table. Here's what I get in log/production.log. Started GET "/" for 10.10.2.13 at Sun Jun 10 08:07:19 +0200 2012 Processing by PasswordsController#new as HTML Completed 500 Internal Server Error in 1ms ActiveRecord::StatementInvalid (Could not find table 'passwords'): app/controllers/passwords_controller.rb:77:in `new' app/controllers/passwords_controller.rb:77:in `new' While in log/private.log I get a lot more output so here's just a snippet but it looks to me like it's working with the database. Edit: This was actually old log output, maybe from db:create. Migrating to AddUserToPassword (20120220172426) (0.3ms) ALTER TABLE "passwords" ADD "user_id" integer (0.0ms) PRAGMA index_list("passwords") (0.2ms) CREATE INDEX "index_passwords_on_user_id" ON "passwords" ("user_id") (0.7ms) INSERT INTO "schema_migrations" ("version") VALUES ('20120220172426') (0.1ms) select sqlite_version(*) (0.1ms) SELECT "schema_migrations"."version" FROM "schema_migrations" (0.0ms) PRAGMA index_list("passwords") (0.0ms) PRAGMA index_info('index_passwords_on_user_id') (4.6ms) PRAGMA index_list("rails_admin_histories") (0.0ms) PRAGMA index_info('index_rails_admin_histories') (0.0ms) PRAGMA index_list("users") (4.8ms) PRAGMA index_info('index_users_on_unlock_token') (0.0ms) PRAGMA index_info('index_users_on_reset_password_token') (0.0ms) PRAGMA index_info('index_users_on_email') (0.0ms) PRAGMA index_list("views") In my vhost I have it set to use RailsEnv private. <VirtualHost *:80> # ProxyPreserveHost on # # ProxyPass / http://10.220.100.209:180/ # ProxyPassReverse / http://10.220.100.209:180/ DocumentRoot /var/www/pwpusher/public <Directory /var/www/pwpusher/public> allow from all Options -MultiViews </Directory> RailsEnv private ServerName pwpush.intranet ErrorLog /var/log/apache2/error.log LogLevel debug CustomLog /var/log/apache2/access.log combined </VirtualHost> My passenger.conf in mods-enabled is default for Debian. <IfModule mod_passenger.c> PassengerRoot /usr PassengerRuby /usr/bin/ruby </IfModule> In the apache error.log I get something more cryptic to me. [Sun Jun 10 06:25:07 2012] [notice] Apache/2.2.16 (Debian) Phusion_Passenger/2.2.11 PHP/5.3.3-7+squeeze9 with Suhosin-Patch mod_ssl/2.2.16 OpenSSL/0.9.8o configured -- resuming normal operations /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 08:07:19 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 10:17:16 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / Maybe that's routine stuff. I can see the rake command create files in the relative app root db/. I have private.sqlite3, production.sqlite3 among others. And here's my config/database.yml. base: &base adapter: sqlite3 timeout: 5000 development: database: db/development.sqlite3 <<: *base test: database: db/test.sqlite3 <<: *base private: database: db/private.sqlite3 <<: *base production: database: db/production.sqlite3 <<: *base I've tried setting absolute paths in it but that did not help.

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• How to get ISA 2006 Web Proxy to work with the Single Network Adapter template

  - by tronda

  I need to test an issue with running our application behind a proxy server with different type of configurations, so I installed ISA 2006 Enterprise on a desktop computer. Since this computer only has a single network card and I want to start out easy, I chose the "Single Network Adapter" template. We have a internal NAT'ed network which is in the 10 range. I have defined the internal network on the ISA server to be 10.XXX.YY.1 - 10.XXX.YY.255 I also have the Default rule which denies all traffic, but I've added the following Rule: Policy - Protocols - From - To Accept HTTP Internal External HTTPS Local Host Internal HTTS Server Localhost Then I configured Internet Explorer on a virutal machine running XP within virtualbox with Brigded network (gets same network address range as regular computers on our network) similar to this Instead of the server name I used the IP address. When I try to access a web page, this doesn't go through and I get the following log messages on the proxy server: Original Client IP Client Agent Authenticated Client Service Referring Server Destination Host Name Transport HTTP Method MIME Type Object Source Source Proxy Destination Proxy Bidirectional Client Host Name Filter Information Network Interface Raw IP Header Raw Payload GMT Log Time Source Port Processing Time Bytes Sent Bytes Received Cache Information Error Information Authentication Server Log Time Client IP Destination IP Destination Port Protocol Action Rule Result Code HTTP Status Code Client Username Source Network Destination Network URL Server Name Log Record Type 10.XXX.YY.174 - TCP - - - 24.08.2010 13:25:24 1080 0 0 0 0x0 0x0 - 24.08.2010 06:25:24 10.XXX.YY.174 10.XXX.YY.175 80 HTTP Initiated Connection MyHTTPAccess 0x0 ERROR_SUCCESS Internal Local Host - PROXYTEST Firewall 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:24 2275 0 0 0 0x0 0x0 - 24.08.2010 06:25:24 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Initiated Connection 0x0 ERROR_SUCCESS Local Host Local Host - PROXYTEST Firewall 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:25 2275 0 0 0 0x0 0x0 - 24.08.2010 06:25:25 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Closed Connection 0x80074e20 FWX_E_GRACEFUL_SHUTDOWN Local Host Local Host - PROXYTEST Firewall 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:25 2276 0 0 0 0x0 0x0 - 24.08.2010 06:25:25 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Initiated Connection 0x0 ERROR_SUCCESS Local Host Local Host - PROXYTEST Firewall 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:26 2276 0 0 0 0x0 0x0 - 24.08.2010 06:25:26 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Closed Connection 0x80074e20 FWX_E_GRACEFUL_SHUTDOWN Local Host Local Host - PROXYTEST Firewall 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:26 2277 0 0 0 0x0 0x0 - 24.08.2010 06:25:26 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Initiated Connection 0x0 ERROR_SUCCESS Local Host Local Host - PROXYTEST Firewall 10.XXX.YY.159 - UDP - - - 24.08.2010 13:25:26 68 0 0 0 0x0 0x0 - 24.08.2010 06:25:26 10.XXX.YY.159 255.255.255.255 67 DHCP (request) Denied Connection [Enterprise] Default rule 0xc004000d FWX_E_POLICY_RULES_DENIED Internal Local Host - PROXYTEST Firewall 10.XXX.YY.166 - UDP - - - 24.08.2010 13:25:26 68 0 0 0 0x0 0x0 - 24.08.2010 06:25:26 10.XXX.YY.166 255.255.255.255 67 DHCP (request) Denied Connection [Enterprise] Default rule 0xc004000d FWX_E_POLICY_RULES_DENIED Internal Local Host - PROXYTEST Firewall 0.0.0.0 Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Yes Proxy 10.XXX.YY.175 TCP GET Internet - - - Req ID: 096c76ae; Compression: client=No, server=No, compress rate=0% decompress rate=0% - - - 24.08.2010 13:25:27 0 2945 2581 446 0x0 0x40 24.08.2010 06:25:27 10.XXX.YY.174 10.XXX.YY.175 80 http Failed Connection Attempt MyHTTPAccess 10061 anonymous Internal Local Host http://www.vg.no/ PROXYTEST Web Proxy Filter 10.XXX.YY.175 - TCP - - - 24.08.2010 13:25:27 2277 0 0 0 0x0 0x0 - 24.08.2010 06:25:27 10.XXX.YY.175 10.XXX.YY.175 80 HTTP Closed Connection 0x80074e20 FWX_E_GRACEFUL_SHUTDOWN Local Host Local Host - PROXYTEST Firewall

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• Attempting Unauthorized operation - SQL 2008 R2 install

  - by Fred L

  I've been banging against this for a few days. Keep getting this unauthorized error when trying to install SQL 2008 R2 on a Windows 7 machine. I've changed permissions on the key, does not fix... Created an admin user, gave specific permissions on that key, does not fix... Disabled all firewalls, installed from a local admin, does not fix... I'm out of patience and ideas! :) Help? 2012-07-06 13:09:11 Slp: Sco: Attempting to set value AppName 2012-07-06 13:09:11 Slp: SetValue: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VSTAHostConfig\SSIS_ScriptComponent\2.0, Name = AppName 2012-07-06 13:09:11 Slp: Sco: Attempting to create base registry key HKEY_LOCAL_MACHINE, machine 2012-07-06 13:09:11 SSIS: Processing Registry ACLs for SID 'S-1-5-21-2383144575-3599344511-819193542-1074' 2012-07-06 13:09:11 Slp: Sco: Attempting to open registry subkey SOFTWARE\Microsoft\Microsoft SQL Server\100 2012-07-06 13:09:11 SSIS: Setting permision on registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\100. 2012-07-06 13:09:11 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Sco: Attempting to set security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Sco: Attempting to normalize security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Sco: Attempting to normalize security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:11 Slp: Prompting user if they want to retry this action due to the following failure: 2012-07-06 13:09:11 Slp: ---------------------------------------- 2012-07-06 13:09:11 Slp: The following is an exception stack listing the exceptions in outermost to innermost order 2012-07-06 13:09:11 Slp: Inner exceptions are being indented 2012-07-06 13:09:11 Slp: 2012-07-06 13:09:11 Slp: Exception type: Microsoft.SqlServer.Configuration.Sco.ScoException 2012-07-06 13:09:11 Slp: Message: 2012-07-06 13:09:11 Slp: Attempted to perform an unauthorized operation. 2012-07-06 13:09:11 Slp: Data: 2012-07-06 13:09:11 Slp: WatsonData = 100 2012-07-06 13:09:11 Slp: DisableRetry = true 2012-07-06 13:09:11 Slp: Inner exception type: System.UnauthorizedAccessException 2012-07-06 13:09:11 Slp: Message: 2012-07-06 13:09:11 Slp: Attempted to perform an unauthorized operation. 2012-07-06 13:09:11 Slp: Stack: 2012-07-06 13:09:11 Slp: at System.Security.AccessControl.Win32.GetSecurityInfo(ResourceType resourceType, String name, SafeHandle handle, AccessControlSections accessControlSections, RawSecurityDescriptor& resultSd) 2012-07-06 13:09:11 Slp: at System.Security.AccessControl.NativeObjectSecurity.CreateInternal(ResourceType resourceType, Boolean isContainer, String name, SafeHandle handle, AccessControlSections includeSections, Boolean createByName, ExceptionFromErrorCode exceptionFromErrorCode, Object exceptionContext) 2012-07-06 13:09:11 Slp: at Microsoft.SqlServer.Configuration.Sco.SqlRegistrySecurity..ctor(ResourceType resourceType, SafeRegistryHandle handle, AccessControlSections includeSections) 2012-07-06 13:09:11 Slp: at Microsoft.SqlServer.Configuration.Sco.SqlRegistrySecurity.Create(InternalRegistryKey key) 2012-07-06 13:09:11 Slp: at Microsoft.SqlServer.Configuration.Sco.InternalRegistryKey.GetAccessControl() 2012-07-06 13:09:11 Slp: at Microsoft.SqlServer.Configuration.Sco.InternalRegistryKey.SetSecurityDescriptor(String sddl, Boolean overwrite) 2012-07-06 13:09:11 Slp: ---------------------------------------- 2012-07-06 13:09:24 Slp: User has chosen to retry this action 2012-07-06 13:09:24 Slp: Sco: Attempting to normalize security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: Sco: Attempting to normalize security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;OICI;KR;;;S-1-5-21-2383144575-3599344511-819193542-1074) 2012-07-06 13:09:24 Slp: Prompting user if they want to retry this action due to the following failure: 2012-07-06 13:09:24 Slp: ----------------------------------------

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• Postfix not sending/allowing receiving of messages after server (hardware) changed

  - by 537mfb

  We had na old notebook runing Ubuntu 12.04 working as a web/ftp/mail server and it worked but since the notebook was a notebook and pretty old and unreliable, a desktop was bought to replace it before it stopped working all together. Due to issues with the new desktop's vídeo card, we couldn't use Ubuntu 12.04 so we installed Ubuntu 13.10 and wen't about configuring it. Since we removed the notebook from the network, we kept the same Computer Name and local IP address to make things as close to the old server as possible configuration-wise. However, something has gone wrong since Postfix is throwing error 451 4.3.0 lookup faillure on every attempt to send a mail, and no email can be received either. Our main.cf file is a copy of the one we were using (and working) on the old server (notice we use EHCP) # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name powered by Easy Hosting Control Panel (ehcp) on Ubuntu, www.ehcp.net biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no myhostname = m21-traducoes.com.pt relayhost = mydestination = localhost, 89.152.248.139 mynetworks = 127.0.0.0/8, 192.168.0.0/16, 172.16.0.0/16, 10.0.0.0/8, 89.152.248.0/24 virtual_alias_domains = virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, proxy:mysql:/etc/postfix/mysql-virtual_email2email.cf transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf virtual_mailbox_base = /home/vmail virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,check_client_access hash:/var/lib/pop-before-smtp/hosts,reject_unauth_destination smtp_use_tls = yes smtpd_use_tls = yes smtpd_tls_auth_only = no smtpd_tls_CAfile = /etc/postfix/cacert.pem smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom virtual_create_maildirsize = yes virtual_mailbox_extended = yes virtual_mailbox_limit_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailbox_limit_maps.cf virtual_mailbox_limit_override = yes virtual_maildir_limit_message = "The user you are trying to reach is over quota." virtual_overquota_bounce = yes debug_peer_list = sender_canonical_maps = debug_peer_level = 1 proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $mynetworks $virtual_mailbox_limit_maps $transport_maps alias_maps = hash:/etc/aliases smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated,check_client_access hash:/var/lib/pop-before-smtp/hosts,reject_unauth_destination smtpd_destination_concurrency_limit = 2 smtpd_destination_rate_delay = 1s smtpd_extra_recipient_limit = 10 disable_vrfy_command = yes smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_error_sleep_time = 1s smtpd_soft_error_limit = 10 smtpd_hard_error_limit = 20 This configuration was working before but now everytime i try to send a mail in squirrelmail it reports: Message not sent. Server replied: Requested action aborted: error in processing 451 4.3.0 <[email protected]>: Temporary lookup failure And i can't send mail to it from outsider either. Any ideas? EDIT: Here are some issues MXToolBox reports to my domain, answering hopefully to @Teun Vink: BlackList Mail Server Web Server DNS Error 4 0 2 0 Warnings 0 0 0 3 Passed 0 6 3 12 So the domain is on some blacklist, but that doesn't explain the error at all No mail server issues found (except it's not working) Those two web server errors it's because i don't have HTTPS workin (No SSL Certificate) so the test fails Those 3 DNS warnings we're already there when it was working with the other machine and are related to stuff i can't control: SOA Refresh Value is outside of the recommended range SOA Expire Value out of recommended range SOA NXDOMAIN Value too high I've searched and as far as i can tell only the guys who sold the retail can change those values and they won't. Edit2: I half solved the issue.on the new machine postfix was installed but postfix-mysql waasn't so he couldn't connect to the database (rookie mistake). After fixing that, i can now send mails to the outsider without any issues, however i am still not able to receive mails from utside. The sender doesn't get any message warning about the non-delivery but the message doesn't fall in the inbox and the log shows: Nov 13 15:11:57 m21-traducoes postfix/smtpd[5872]: NOQUEUE: reject: RCPT from re lay4.ptmail.sapo.pt[212.55.154.24]: 451 4.3.5 <relay4.ptmail.sapo.pt[212.55.154. 24]>: Client host rejected: Server configuration error; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<sapo.pt> Nov 13 15:11:57 m21-traducoes postfix/smtpd[5872]: disconnect from relay4.ptmail .sapo.pt[212.55.154.24]

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• Sporadic disk clicking sound

  - by Abdó

  Hi, I'm having some unusual and sporadic hard disk clicking issues. Here is a cronological description of the facts. I'm using an ASUS P6T-SE with Intel Core i7, 6Gb RAM 600W Power supply and ATI4670 graphics, running Ubuntu 10.10. About one month ago my hard disk (SATA II Seagate Barracuda 1Tb 7200 rpm) started making a clicking sound: a sort of loud tic-tac, every second or so, when involved in disk activity. The system was clearly slower than before at disk access, but it was functional and I could not find any signal of trouble on the linux logs. I disconnected the disk and tried an older SATA drive I had around: no problem with it. Then I reconnected the Seagate disk, and the problem was mysteriously gone. Ubuntu booted normally, usual speed, no clicking. A couple of weeks later, the problem reappeared. I tried disconnecting reconnecting (as it somehow solved the problem before) without luck. So, despite it was a rather new drive, I assumed it was a hardware issue, made backups and bought a new drive. The new drive is a SATA II Seagate Barracuda 1.5 Tb 7200 rpm. I installed both drives at the same time, with the intention of transferring my files from on to the other. To my surprise, when I booted the computer with both drives, both started making the clicking sound !! Even worse, I removed the old drive, leaving the unformated new drive connected, and booted from a LiveCD. It kept clicking ! Puzzled by this, I tried both drives on my laptop with a SATA to USB cable. At the moment I connected any of them, they made one or two unusual clicks and immediately stopped doing that and worked normally. The old drive I thought almost dead, was working like a charm as if nothing happened. Then I thought: "ok, it must be the motherboard. Let's try again". So, I reconnected the old drive to the ASUS P6T motherboard (the same cables and SATA port as before), and it worked as if nothing happened ! The problem was gone again. The new 1.5 Tb drive was also working ok: No clicking nor slowdown. So I left the old 1Tb disk connected and kept using the computer daily during 3 weeks, until today it happened again. Now I don't really know what to do or check. I'm not even sure if it is a hardware issue any more ! This is rather annoying as it seems it happens with a period of 2 or 3 weeks and I have no means of forcing it to happen. Does anyone have a clue of what can causes this behaviour or have any suggestions of things I should check when it happens again ? What I did today is checking some SMART parameters Error log: smartctl -l error /dev/sda. No errors Short selftest: smartctl -t short /dev/sda. No errors Disk Health check: smartctl -H /dev/sda. passed And here are the vendor specific parameters (smartctl -A /dev/sda) Which I'm not quite sure how to interpret. === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 120 099 006 Pre-fail Always - 235962588 3 Spin_Up_Time 0x0003 095 095 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 187 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 072 060 030 Pre-fail Always - 16348045 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 3590 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 94 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 097 000 Old_age Always - 4295164029 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 070 057 045 Old_age Always - 30 (Lifetime Min/Max 19/31) 194 Temperature_Celsius 0x0022 030 043 000 Old_age Always - 30 (0 18 0 0) 195 Hardware_ECC_Recovered 0x001a 037 026 000 Old_age Always - 235962588 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 73950746906346 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1832967731 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 3294986902 Any clue to this mystery will be really welcome. Thank you very much !!

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• how to troubleshoot using rsyslog to output to a mysql database

  - by ChrisNZ

  Using FreeBSD 8.0 32 bit. I have installed rsyslogd 5.5.5 with ommysql. (installed ports /usr/ports/sysutils/rsyslog55 and /usr/ports/sysutils/rsyslog55-mysql) My rsyslog.conf file looks like: $ModLoad imudp $ModLoad imtcp $ModLoad ommysql $ModLoad immark.so $ModLoad imuxsock.so $ModLoad imklog.so $OptimizeForUniprocessor on $AllowedSender UDP, 10.0.0.0/8 $UDPServerAddress 0.0.0.0 $UDPServerRun 514 $UDPServerTimeRequery 2 # +SG560 *.* :ommysql:127.0.0.1,Syslog,sysloguser,mypassword My command line flags for rsyslogd are: -c5 -4 Checking the code with -c5 -N1 returns no errors. I have confirmed that rsyslogd is working by changing the last line to say: *.* /var/log/snapgear.log which results in messages appearing in the snapgear.log file. So it is probably something to do with my MySQL setup If I do: mysql -u sysloguser -p Syslog Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 56 Server version: 5.0.86 FreeBSD port: mysql-server-5.0.86 mysql> select * from SystemEvents; Empty set (0.00 sec) mysql> :-( I have confirmed that sysloguser has full privileges for the Syslog database. If I run rsyslogd on the console in debug mode: /usr/local/sbin/rsyslogd -f /usr/local/etc/rsyslog.conf -c5 -n -d I can see this sequence of events each time a message is received: 9244.376687256:28359280: main Q: entry added, size now log 1, phys 1 entries 9244.376705694:28359280: main Q: EnqueueMsg advised worker start 9244.376726647:28359280: Listening on UDP syslogd socket 4 (IPv4/port 514). 9244.376728602:28359280: --------imUDP calling select, active file descriptors (max 4): 4 9244.376890075:283593c0: wti 0x28306e80: worker awoke from idle processing 9244.376892031:283593c0: we deleted 0 objects and enqueued 0 objects 9244.376893986:283593c0: delete batch from store, new sizes: log 1, phys 1 9244.376895942:283593c0: msgConsumer processes msg 0/1 9244.376897898:283593c0: msg parser: flags 70, from '~NOTRESOLVED~', msg 'Jun 29 17:32:24 SG560 kernel: (20000629T1732244' 9244.376900132:283593c0: parse using parser list 0x283080e8 (the default list). 9244.376902088:283593c0: dropped LF at very end of message (DropTrailingLF is set) 9244.376904044:283593c0: Parser 'rsyslog.rfc5424' returned -2160 9244.376905999:283593c0: Message will now be parsed by the legacy syslog parser (one size fits all... ;)). 9244.376907955:283593c0: Parser 'rsyslog.rfc3164' returned 0 9244.376909910:283593c0: testing filter, f_pmask 255 9244.376911866:283593c0: Called action, logging to ommysql 9244.376918012:283593c0: actionTryResume: action state: susp, next retry (if applicable): 1277869250 [now 1277869244] 9244.376919967:283593c0: action call returned -2123 9244.376921923:283593c0: tryDoAction: unexpected error code -2123, finalizing 9244.376926113:283593c0: actionTryResume: action state: susp, next retry (if applicable): 1277869250 [now 1277869244] 9244.376928069:283593c0: ruleset: get iRet 0 from rule.ProcessMsg() 9244.376930024:283593c0: ruleset.ProcessMsg() returns 0 9244.376931980:283593c0: regular consumer finished, iret=0, szlog 0 sz phys 1 9244.376933936:283593c0: XXX: enqueueing data element 0 of 1 9244.376935891:283593c0: we deleted 1 objects and enqueued 0 objects 9244.376938126:283593c0: delete batch from store, new sizes: log 0, phys 0 9244.376940082:283593c0: regular consumer finished, iret=4, szlog 0 sz phys 0 9244.376942037:283593c0: main Q:Reg/w0: worker IDLE, waiting for work. .... I can see the Action Call to ommysql returns unexpected error code -2123 Now I am stuck! Any ideas on what to look for next? Perhaps I there are extra ports I need to install? I will be very grateful for any assistance here!

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• What's wrong with this vcl config for varnish-cache as load balancer?

  - by dabito

  I have the current configurations active on my default.vcl varnish file on the machine that balances the load for other two machines (the other two machines also have varnish active). My intention is to have this server do only the load balancing and the other machines do the processing and also their own caching. My problem is that even with the config testing (not even a stress test or anything, just a few requests a minute) I get the guru meditation error and have to restart varnish. This is the default.vcl for the load balancing server: backend vader { .host = "app1.server.com"; .probe = { .url = "/"; .interval = 10s; .timeout = 4s; .window = 5; .threshold = 3; } } backend malgus { .host = "app2.server.com"; .probe = { .url = "/"; .interval = 10s; .timeout = 4s; .window = 5; .threshold = 3; } } director dooku round-robin { { .backend = vader; } { .backend = malgus; } } sub vcl_recv { if (req.http.host ~ "^balancer.server.com$") { set req.backend = dooku; } } Am I doing something wrong or missing something? EDIT: This is varnishlog's output: 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345839995 1.0 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345839998 1.0 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345840001 1.0 0 Backend_health - malgus Still sick 4--X--- 0 3 5 0.000000 3.846876 0 Backend_health - vader Still sick 4--X--- 0 3 5 0.000000 3.839194 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345840004 1.0 14 SessionOpen c 10.150.7.151 38272 :80 14 ReqStart c 10.150.7.151 38272 458200540 14 RxRequest c GET 14 RxURL c / 14 RxProtocol c HTTP/1.1 14 RxHeader c Host: dooku-dev.excelsior.com 14 RxHeader c Connection: keep-alive 14 RxHeader c User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11 14 RxHeader c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 14 RxHeader c Accept-Encoding: gzip,deflate,sdch 14 RxHeader c Accept-Language: en-US,en;q=0.8,es-419;q=0.6,es;q=0.4 14 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 14 RxHeader c Cookie: SESSa87d6c6da0c61037a9169122dc5e4a19=HR_0Srhgc-uDArT3aJFzOBy31FtzneTXg38byr1eGMU; __atuvc=4%7C33 14 VCL_call c recv pass 14 VCL_call c hash 14 Hash c / 14 Hash c dooku-dev.excelsior.com 14 VCL_return c hash 14 VCL_call c pass pass 14 FetchError c no backend connection 14 VCL_call c error deliver 14 VCL_call c deliver deliver 14 TxProtocol c HTTP/1.1 14 TxStatus c 503 14 TxResponse c Service Unavailable 14 TxHeader c Server: Varnish 14 TxHeader c Content-Type: text/html; charset=utf-8 14 TxHeader c Retry-After: 5 14 TxHeader c Content-Length: 418 14 TxHeader c Accept-Ranges: bytes 14 TxHeader c Date: Fri, 24 Aug 2012 20:26:44 GMT 14 TxHeader c X-Varnish: 458200540 14 TxHeader c Age: 0 14 TxHeader c Via: 1.1 varnish 14 TxHeader c Connection: close 14 Length c 418 14 ReqEnd c 458200540 1345840004.916415691 1345840004.965190172 0.020933390 0.048741817 0.000032663 14 SessionClose c error 14 StatSess c 10.150.7.151 38272 0 1 1 0 1 0 256 418 14 SessionOpen c 10.150.7.151 38273 :80 14 ReqStart c 10.150.7.151 38273 458200541 14 RxRequest c GET 14 RxURL c /favicon.ico 14 RxProtocol c HTTP/1.1 14 RxHeader c Host: dooku-dev.excelsior.com 14 RxHeader c Connection: keep-alive 14 RxHeader c Accept: */* 14 RxHeader c User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11 14 RxHeader c Accept-Encoding: gzip,deflate,sdch 14 RxHeader c Accept-Language: en-US,en;q=0.8,es-419;q=0.6,es;q=0.4 14 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 14 RxHeader c Cookie: SESSa87d6c6da0c61037a9169122dc5e4a19=HR_0Srhgc-uDArT3aJFzOBy31FtzneTXg38byr1eGMU; __atuvc=4%7C33 14 VCL_call c recv pass 14 VCL_call c hash 14 Hash c /favicon.ico 14 Hash c dooku-dev.excelsior.com 14 VCL_return c hash 14 VCL_call c pass pass 14 FetchError c no backend connection 14 VCL_call c error deliver 14 VCL_call c deliver deliver 14 TxProtocol c HTTP/1.1 14 TxStatus c 503 14 TxResponse c Service Unavailable 14 TxHeader c Server: Varnish 14 TxHeader c Content-Type: text/html; charset=utf-8 14 TxHeader c Retry-After: 5 14 TxHeader c Content-Length: 418 14 TxHeader c Accept-Ranges: bytes 14 TxHeader c Date: Fri, 24 Aug 2012 20:26:45 GMT 14 TxHeader c X-Varnish: 458200541 14 TxHeader c Age: 0 14 TxHeader c Via: 1.1 varnish 14 TxHeader c Connection: close 14 Length c 418 14 ReqEnd c 458200541 1345840005.226389885 1345840005.226457834 0.000026941 0.000043154 0.000024796 14 SessionClose c error 14 StatSess c 10.150.7.151 38273 0 1 1 0 1 0 256 418

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• VPS 512 MB RAM with WordPressMU comes to consumes lots of memory

  - by CAPitalZ

  I have googled for days and gathered all optimization suggestions and tried. My sites are not getting any high hits. May be like 100 hits per day [all my sites combined]. Here are my specs I have 512 MB RAM VPS with burstable 1024 MB. Centos 5 32-bit & cPanel/WHM Apache 2.2 MySQL 5.0 PHP 5.3.2 Here is my Configs I have 2 WordPressMU production sites, and 1 test site my.cnf # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /var/lib/mysql/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port = 3306 socket = /var/lib/mysql/mysql.sock skip-locking skip-bdb skip-innodb key_buffer = 16M max_allowed_packet = 1M table_cache = 64 sort_buffer_size = 512K net_buffer_length = 8K read_buffer_size = 256K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M #CAPitalZ thread_cache_size=8 thread_concurrency=4 #query_cache_type=1 #query_cache_limit=1M query_cache_size=16M concurrent_insert=2 low_priority_updates=1 max_connections=50 tmp_table_size=16M max_heap_table_size=16M join_buffer_size=1M interactive_timeout=25 wait_timeout=1000 #connect_timout=10 not able to restart mysql max_connect_errors=10 # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # skip-networking # Disable Federated by default skip-federated # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id = 1 [mysqld_safe] open_files_limit=8192 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [isamchk] key_buffer = 20M sort_buffer_size = 20M read_buffer = 2M write_buffer = 2M [myisamchk] key_buffer = 20M sort_buffer_size = 20M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout httpd.conf I have unselected many modules and recompiled using EasyApache in WHM. Only have the following modules built Deflate Expires Fileprotect Imagemap MPM Prefork Version [default] EAccelerator for PHP Bcmath Calendar CurlSSL [I'm using Curl. But I don't have any https sites] Expat GD [for image cropping] Gettext Imap Mbregex [default] Mbstring [need both Mbregex and Mbstring for utf-8] Mysql of the system MySQL "Improved" extension. Sockets TTF (FreeType) [I'm using custom font] Zlib Under Global Configuration I only have FollowSymLinks enabled I Have TraceEnable, ServerSignature, FileETag OFF ServerTokens ProductOnly DirectoryIndex Priority has index.php as the first one I have removed Clamd [Clam Anti-virus] SpamAssasin is Off Under Tweak Settings Default catch-all/default address behavior for new accounts. This is set to "fail" All stats programs turned off I have eAccelerator installed and checked in phpinfo and its working [Pre VirtualHost Include under WHM] Timeout 20 KeepAlive On MaxKeepAliveRequests 200 KeepAliveTimeout 3 MinSpareServers 1 MaxSpareServers 3 StartServers 1 ServerLimit 50 MaxClients 50 MaxRequestsPerChild 4000 ExtendedStatus Off #ServerType standalone this throws error HostnameLookups Off <Directory "/"> AllowOverride None </Directory> My sites will take ages to load and WHM/CPanel will not even load. adadaa.com/ http://adadaa.net/ kadais.ca/ My average memory consumption is like 1000 MB! [yes always bursting] The process that consumes most CPU and also most memory is mysql But I also get like 15 httpd processes [when its bursting] I already got warning from cpuwatchcheck saying "While processing, the cpu has been maxed out for more than a 6 hour period. The current load/uptime line on the server at the time of this email is 07:00:37 up 11:30, 0 users, load average: 14.64, 16.79, 20.07" I don't know, I have tried switching these config values many different times, but nothing seems to work. Please show some light... Thanks

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• jQuery show "loading" during slow operation

  - by The Disintegrator

  I'm trying to show a small loading image during a slow operation with jQuery and can't get it right. It's a BIG table with thousands of rows. When I check the "mostrarArticulosDeReferencia" checkbox it removes the "hidden" class from these rows. This operation takes a couple of seconds and I want to give some feedback. "loading" is a div with a small animated gif Here's the full code jQuery(document).ready(function() { jQuery("#mostrarArticulosDeReferencia").click(function(event){ if( jQuery("#mostrarArticulosDeReferencia").attr("checked") ) { jQuery("#loading").show(); //not showing jQuery("#listadoArticulos tr.r").removeClass("hidden"); //slow operation jQuery("#loading").hide(); } else { jQuery("#loading").show(); //not showing jQuery("#listadoArticulos tr.r").addClass("hidden"); //slow operation jQuery("#loading").hide(); } }); jQuery("#loading").hide(); }); It looks like jquery is "optimizing" those 3 lines jQuery("#loading").show(); //not showing jQuery("#listadoArticulos tr.r").removeClass("hidden"); jQuery("#loading").hide(); And never shows the loading div. Any Ideas? Bonus: There is a faster way of doing this show/hide thing? Found out that toggle is WAY slower. UPDATE: I tried this jQuery("#mostrarArticulosDeReferencia").click(function(event){ if( jQuery("#mostrarArticulosDeReferencia").attr("checked") ) { jQuery("#loading").show(); //not showing jQuery("#listadoArticulos tr.r").removeClass("hidden"); //slow operation setTimeout("jQuery('#loading').hide()", 1000); } else { jQuery("#loading").show(); //not showing jQuery("#listadoArticulos tr.r").addClass("hidden"); //slow operation setTimeout("jQuery('#loading').hide()", 1000); } }); That's what I get click on checkbox nothing happens during 2/3 secs (processing) page gets updated loading div shows up during a split second UPDATE 2: I've got a working solution. But WHY I have to use setTimeout to make it work is beyond me... jQuery("#mostrarArticulosDeReferencia").click(function(event){ if( jQuery("#mostrarArticulosDeReferencia").attr("checked") ) { jQuery("#loading").show(); setTimeout("jQuery('#listadoArticulos tr.r').removeClass('hidden');", 1); setTimeout("jQuery('#loading').hide()", 1); } else { jQuery("#loading").show(); setTimeout("jQuery('#listadoArticulos tr.r').addClass('hidden');", 1); setTimeout("jQuery('#loading').hide()", 1); } });

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• Usage of IcmpSendEcho2 with an asynchronous callback

  - by Ben Voigt

  I've been reading the MSDN documentation for IcmpSendEcho2 and it raises more questions than it answers. I'm familiar with asynchronous callbacks from other Win32 APIs such as ReadFileEx... I provide a buffer which I guarantee will be reserved for the driver's use until the operation completes with any result other than IO_PENDING, I get my callback in case of either success or failure (and call GetCompletionStatus to find out which). Timeouts are my responsibility and I can call CancelIo to abort processing, but the buffer is still reserved until the driver cancels the operation and calls my completion routine with a status of CANCELLED. And there's an OVERLAPPED structure which uniquely identifies the request through all of this. IcmpSendEcho2 doesn't use an OVERLAPPED context structure for asynchronous requests. And the documentation is unclear excessively minimalist about what happens if the ping times out or fails (failure would be lack of a network connection, a missing ARP entry for local peers, ICMP destination unreachable response from an intervening router for remote peers, etc). Does anyone know whether the callback occurs on timeout and/or failure? And especially, if no response comes, can I reuse the buffer for another call to IcmpSendEcho2 or is it forever reserved in case a reply comes in late? I'm wanting to use this function from a Win32 service, which means I have to get the error-handling cases right and I can't just leak buffers (or if the API does leak buffers, I have to use a helper process so I have a way to abandon requests). There's also an ugly incompatibility in the way the callback is made. It looks like the first parameter is consistent between the two signatures, so I should be able to use the newer PIO_APC_ROUTINE as long as I only use the second parameter if an OS version check returns Vista or newer? Although MSDN says "don't do a Windows version check", it seems like I need to, because the set of versions with the new argument aren't the same as the set of versions where the function exists in iphlpapi.dll. Pointers to additional documentation or working code which uses this function and an APC would be much appreciated. Please also let me know if this is completely the wrong approach -- i.e. if either using raw sockets or some combination of IcmpCreateFile+WriteFileEx+ReadFileEx would be more robust.

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