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• rsync command deletion error "IO error encountered -- skipping file deletion"

  - by Jam88

  I use rsync command to take backup of files from one of my ubuntu server to another ubuntu machine. Backup server trigger a script that use rysnc command. Here is the command I use rsync -rltvh --partial --stats --exclude=.beagle/ --exclude=.* --delete-after root@live_server:/home/ /home/live_server_backup/home /tmp/logfile.log 2&1 live_server is ssh-able without password. So it works. Now problem is with --delete-after option After all file synced .At the end I can see deletion procedure skipped.logfile error is like IO error encountered -- skipping file deletion When i tried to find log there were some error while file sync rsync: send_files failed to open "/home/xyz/Desktop/PPT_session_1_context.pdf": Permission denied (13) So my understanding is as rsync could not read all the files from target for safety reason it is skipping the file deletion. Is there any way to make --delete-after work even if there is some permission error? I do not want to use force deletion as it will be dangerous in some situation.

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• OS X Lion: Emptying the trash takes "forever": is using rm -r safe?

  - by EOL

  Emptying my Trash in OS X Lion (non securely) is taking about three hours (about 1.5 million files, from a Time Machine backup). I had to stop the process a few times already, because I could not move my laptop with the external harddrive the files are on. This is also a problem because the Trash emptying is restarted from the very beginning each time I empty the Trash again (i.e., files are not deleted when the Trash emptying is aborted). I read that it is faster to use rm -rf on ~/.Trash, in this case. However, is this safe? (I am afraid that does OS X Lion performs tasks behind the scenes—which would explain its slowness—that rm -r does not, which could lead to problems in the future.)

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• Red Hat cluster: Failure of one of two services sharing the same virtual IP tears down IP

  - by js01

  I'm creating a 2+1 failover cluster under Red Hat 5.5 with 4 services of which 2 have to run on the same node, sharing the same virtual IP address. One of the services on each node needs a (SAN) disk, the other doesn't. I'm using HA-LVM. When I shut down (via ifdown) the two interfaces connected to the SAN to simulate SAN failure, the service needing the disk is disabled, the other keeps running, as expected. Surprisingly (and unfortunately), the virtual IP address shared by the two services on the same machine is also removed, rendering the still-running service useless. How can I configure the cluster to keep the IP address up?

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• PSU Suggestions for SLI EVGA GTX 680 + i7

  - by JMH

  So i am putting together a new machine and am trying to determine the best PSU to go with for this setup. Here is the build i am thinking about Processor Intel Core i7-3770K Ivy Bridge 3.5GHz Motherboard ASRock Z77 Professional Graphics Card (2 SLI) EVGA 02G-P4-2680-KR Sound Card HT | OMEGA eClaro 7.1 Fan/Heat Sync ZALMAN CNPS9500A-LED Case COOLER MASTER HAF X RC-942-KKN1 RAM G.SKILL Ripjaws X Series 32GB (4 x 8GB) SSD Of some Sort So my guess is that i need a 750 -1000W PSU, but which brand.... how much, etc --- really in the woods. Thanks -Josh

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• Remap "next song" key in ubuntu to work with spotify and wine

  - by daniel-magnussons

  I want to change song in spotify with a global key in ubuntu. This is possible on windows with a special key on keyboard, the "next song key"(?) How can I remap a key in ubuntu(no "next song" button here) to work as "next song" button? like "ctrl +right key". And how would i do to make this work with spotify, which is running thru wine? Basically i want to know what the ascii code for "next song" button is, and how do i map it to a key combination under ubuntu. And hope it routes this command thru wine without problem. Edit: I don't have the "next song" button on the ubuntu machine.

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• What are the performance differences between PCI-Express x16 and x4

  - by Cestarian

  I have two PCI-Express 2.0 x16 slots on my motherboard, but one of them is actually just x4. For passing through my graphics card to a virtual machine I need to use both slots simultaneously and unfortunately, the easiest way for me to achieve that is putting the stronger card in the x4 slot (secondary slot; I need the stronger card to be in the secondary slot, not the primary). As such I am wondering what sort of noticable performance differences I can expect from using the x4 slot with a strong card as opposed to having it in the true x16 slot. Does it limit the performance so much that the strong card in the x4 slot will actually perform worse than the significantly weaker card in the x16 slot? (For spec comparison I am using a GTX-670 in the x4 slot and GTX-550-Ti in the x16 slot) What implications does this have?

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• Install DC again after removing on exchange server

  - by Kawharu

  I had a DC and Exchange 2010 installed on the same machine. I removed the DC role, and Exchange server went crazy. I tried to install the DC role again to fix the problem but ran into this error when running DCPROMO: Active Directory Domain Services could not create the NTDS Settings object for this Active Directory Domain Controller CN=NTDS Settings,CN=DC1,CN=Servers,CN=Manukau,CN=Sites,CN=Configuration,DC=AccessGroupnz,DC=com on the remote AD DC Server1.AccessGroupnz.com. Ensure the provided network credentials have sufficient permissions. "The DSA operation is unable to proceed because of a DNS lookup failure." Do you think I need to run this in an elevated command prompt, or change credentials somewhere to domain admin? Or is it something else?

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• WAMP Server vs LAMP Server

  - by Rob A

  Hi All, Just wondering, I want to set up a basic web server at home. I run Windows (XP on the machine to be a server), however I also have Ubuntu on hand if I need to run that. Basically I was wondering if there are any large difference between WAMP servers and LAMP servers? I know the run virtually the same software, but does one perform better than the other? Are there hidden benefits of running it in Ubuntu instead of XP, or the other way around? I know its a basic question, but I havent done anything with Ubuntu, and Ive done about the same amount with web server-ing. Thanks!

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• Postfix relay to multiple servers and multiple users

  - by Frankie

  I currently have postfix configured so that all users get relayed by the local machine with the exception of one user that gets relayed via gmail. To that extent I've added the following configuration: /etc/postfix/main.cf # default options to allow relay via gmail smtp_use_tls=yes smtp_sasl_auth_enable = yes smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt smtp_sasl_security_options = noanonymous # map the relayhosts according to user sender_dependent_relayhost_maps = hash:/etc/postfix/relayhost_maps # keep a list of user and passwords smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd /etc/postfix/relayhost_maps user-one@localhost [smtp.gmail.com]:587 /etc/postfix/sasl_passwd [smtp.gmail.com]:587 [email protected]:user-one-pass-at-google I know I can map multiple users to multiple passwords using smtp_sasl_password_maps but that would mean that all relay would be done by gmail where I specifically want all relay to be done by the localhost with the exception of some users. Now I would like to have a user-two@localhost (etc) relay via google with their own respective passwords. Is that possible?

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• Clients didn't switch to secondary DNS server during fail over

  - by The Digital Ninja

  I have two internal dns servers set up and all my servers have both of them in the resolv.conf Our main dns server went down and suddenly no server could see each other. I edited a few of the servers resolv.conf manually and committed out the first (down) dns server and that machine would instantly be able to ping again. What did I do wrong, does it not auto switch to the secondary dns server when it times out? # File managed by puppet nameserver 192.168.146.100 nameserver 192.168.159.101 ;nameserver 72.14.188.5 domain example.com search example.com

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• Apache no longer starts at Windows boot up

  - by w3d

  I have Apache installed as part of XAMPP - local test server. It is configured as a Windows (XP) Service. Startup type is "Automatic". For a long time now it has always started when Windows boots up, but recently this has stopped happening. I now need to start it manually via the XAMPP Control Panel - at which point it appears to start up perfectly OK. The only recent updates to the machine (that I recall) are Windows Updates - none of which appear to have "known issues" that relate to this. And updates to Google Chrome. Any ideas what could prevent Apache from starting automatically at Windows (XP) boot up? EDIT#1 There are 2 related Errors in my system event log regarding the Service Control Manager: Timeout (30000 milliseconds) waiting for the Apache2.2 service to connect. The Apache2.2 service failed to start due to the following error: The service did not respond to the start or control request in a timely fashion. When I manually start the Apache server after boot up there are 2 "information" events stating that it was "sent a start control" and that it "entered the running state". Although I notice it appears to take 19 seconds between the start control being sent and entering a running state - according to the event log. So, maybe 30 seconds during boot up isn't long enough (anymore) for Apache to start??

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• Lock down SFTP access on OpenSolaris

  - by Simon

  Hi all, I have an OpenSolaris 2009.06 server and I'd like to enable a user to remotely change files in a specific directory, ideally via SFTP or FTP-via-SSH. This user does not yet have an account on the machine and I'd like to create it so it's as restricted as possible. Is there a canonical way of doing this? I know about OpenSolaris' role-based access control and authorizations model, but I figure it's a lot of work (i.e., a lot I can mess up) to really lock down a full-blown user account (prevent fork bombs, make sure there's really no other file in the file system which can be written to...). Any hint is greatly appreciated. Thanks, Simon

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• Fsck stuck on "Clone Multiply-claimed blocks"

  - by user3436581

  Update: I fixed the issue. But I don't see eth0 directory in /sys/class/net Any idea how to fix that? I could not bring up eth0 and I need it badly so that I can backup everything over the network since I'm working on VM console. This virtual machine sda1 is stuck. I've tried e2fsck and fsck and both gets stuck after "Clone multiply-claimed blocls? yes" I've waited for around 5 to 8 hours and it still the same. I could not mount the filesystem without fixing these errors. I'm doing this after un-mounting all filesystems in rescue mode.. Reboot does not help. Any suggestions? Screenshot: http://i.stack.imgur.com/lgixr.jpg Alternative screenshot url: http://s27.postimg.org/grk4p9eeb/error.png

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• Server Memory with Magento

  - by Mohamed Elgharabawy

  I have a cloud server with the following specifications: 2vCPUs 4G RAM 160GB Disk Space Network 400Mb/s System Image: Ubuntu 12.04 LTS I am only running Magento CE 1.7.0.2 on this server. Nothing else. Usually, the server has a loading time of 4-5 seconds. Recently, this has dropped to over 30 seconds and sometimes the server just goes away and I get HTTP error reports to my email stating that HTTP requests took more than 20000ms. Running top command and sorting them returns the following: top - 15:29:07 up 3:40, 1 user, load average: 28.59, 25.95, 22.91 Tasks: 112 total, 30 running, 82 sleeping, 0 stopped, 0 zombie Cpu(s): 90.2%us, 9.3%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.3%si, 0.2%st PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 31901 www-data 20 0 360m 71m 5840 R 7 1.8 1:39.51 apache2 32084 www-data 20 0 362m 72m 5548 R 7 1.8 1:31.56 apache2 32089 www-data 20 0 348m 59m 5660 R 7 1.5 1:41.74 apache2 32295 www-data 20 0 343m 54m 5532 R 7 1.4 2:00.78 apache2 32303 www-data 20 0 354m 65m 5260 R 7 1.6 1:38.76 apache2 32304 www-data 20 0 346m 56m 5544 R 7 1.4 1:41.26 apache2 32305 www-data 20 0 348m 59m 5640 R 7 1.5 1:50.11 apache2 32291 www-data 20 0 358m 69m 5256 R 6 1.7 1:44.26 apache2 32517 www-data 20 0 345m 56m 5532 R 6 1.4 1:45.56 apache2 30473 www-data 20 0 355m 66m 5680 R 6 1.7 2:00.05 apache2 32093 www-data 20 0 352m 63m 5848 R 6 1.6 1:53.23 apache2 32302 www-data 20 0 345m 56m 5512 R 6 1.4 1:55.87 apache2 32433 www-data 20 0 346m 57m 5500 S 6 1.4 1:31.58 apache2 32638 www-data 20 0 354m 65m 5508 R 6 1.6 1:36.59 apache2 32230 www-data 20 0 347m 57m 5524 R 6 1.4 1:33.96 apache2 32231 www-data 20 0 355m 66m 5512 R 6 1.7 1:37.47 apache2 32233 www-data 20 0 354m 64m 6032 R 6 1.6 1:59.74 apache2 32300 www-data 20 0 355m 66m 5672 R 6 1.7 1:43.76 apache2 32510 www-data 20 0 347m 58m 5512 R 6 1.5 1:42.54 apache2 32521 www-data 20 0 348m 59m 5508 R 6 1.5 1:47.99 apache2 32639 www-data 20 0 344m 55m 5512 R 6 1.4 1:34.25 apache2 32083 www-data 20 0 345m 56m 5696 R 5 1.4 1:59.42 apache2 32085 www-data 20 0 347m 58m 5692 R 5 1.5 1:42.29 apache2 32293 www-data 20 0 353m 64m 5676 R 5 1.6 1:52.73 apache2 32301 www-data 20 0 348m 59m 5564 R 5 1.5 1:49.63 apache2 32528 www-data 20 0 351m 62m 5520 R 5 1.6 1:36.11 apache2 31523 mysql 20 0 3460m 576m 8288 S 5 14.4 2:06.91 mysqld 32002 www-data 20 0 345m 55m 5512 R 5 1.4 2:01.88 apache2 32080 www-data 20 0 357m 68m 5512 S 5 1.7 1:31.30 apache2 32163 www-data 20 0 347m 58m 5512 S 5 1.5 1:58.68 apache2 32509 www-data 20 0 345m 56m 5504 R 5 1.4 1:49.54 apache2 32306 www-data 20 0 358m 68m 5504 S 4 1.7 1:53.29 apache2 32165 www-data 20 0 344m 55m 5524 S 4 1.4 1:40.71 apache2 32640 www-data 20 0 345m 56m 5528 R 4 1.4 1:36.49 apache2 31888 www-data 20 0 359m 70m 5664 R 4 1.8 1:57.07 apache2 32511 www-data 20 0 357m 67m 5512 S 3 1.7 1:47.00 apache2 32054 www-data 20 0 357m 68m 5660 S 2 1.7 1:53.10 apache2 1 root 20 0 24452 2276 1232 S 0 0.1 0:01.58 init Moreover, running free -m returns the following: total used free shared buffers cached Mem: 4003 3919 83 0 118 901 -/+ buffers/cache: 2899 1103 Swap: 0 0 0 To investigate this further, I have installed apache buddy, it recommeneded that I need to reduce the maxclient connections. Which I did. I also installed MysqlTuner and it suggests that I need to set my innodb_buffer_pool_size to = 3.0G. However, I cannot do that, since the whole memory is 4G. Here is the output from apache buddy: ### GENERAL REPORT ### Settings considered for this report: Your server's physical RAM: 4003MB Apache's MaxClients directive: 40 Apache MPM Model: prefork Largest Apache process (by memory): 73.77MB [ OK ] Your MaxClients setting is within an acceptable range. Max potential memory usage: 2950.8 MB Percentage of RAM allocated to Apache 73.72 % And this is the output of MySQLTuner: -------- Performance Metrics ------------------------------------------------- [--] Up for: 47m 22s (675K q [237.552 qps], 12K conn, TX: 1B, RX: 300M) [--] Reads / Writes: 45% / 55% [--] Total buffers: 2.1G global + 2.7M per thread (151 max threads) [OK] Maximum possible memory usage: 2.5G (64% of installed RAM) [OK] Slow queries: 0% (0/675K) [OK] Highest usage of available connections: 26% (40/151) [OK] Key buffer size / total MyISAM indexes: 36.0M/18.7M [OK] Key buffer hit rate: 100.0% (245K cached / 105 reads) [OK] Query cache efficiency: 92.5% (500K cached / 541K selects) [!!] Query cache prunes per day: 302886 [OK] Sorts requiring temporary tables: 0% (1 temp sorts / 15K sorts) [!!] Joins performed without indexes: 12135 [OK] Temporary tables created on disk: 25% (8K on disk / 32K total) [OK] Thread cache hit rate: 90% (1K created / 12K connections) [!!] Table cache hit rate: 17% (400 open / 2K opened) [OK] Open file limit used: 12% (123/1K) [OK] Table locks acquired immediately: 100% (196K immediate / 196K locks) [!!] InnoDB buffer pool / data size: 2.0G/3.5G [OK] InnoDB log waits: 0 -------- Recommendations ----------------------------------------------------- General recommendations: Run OPTIMIZE TABLE to defragment tables for better performance MySQL started within last 24 hours - recommendations may be inaccurate Enable the slow query log to troubleshoot bad queries Adjust your join queries to always utilize indexes Increase table_cache gradually to avoid file descriptor limits Read this before increasing table_cache over 64: http://bit.ly/1mi7c4C Variables to adjust: query_cache_size ( 64M) join_buffer_size ( 128.0K, or always use indexes with joins) table_cache ( 400) innodb_buffer_pool_size (= 3G) Last but not least, the server still has more than 60% of free disk space. Now, based on the above, I have few questions: Are these numbers normal? Do they make sense? Do I need to upgrade the server? If I don't need to upgrade and my configuration is not correct, how do I optimize it?

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• Extract cert and private key from JKS keystore to use it in Apache2 httpd

  - by momo

  I tried to find this but no luck. I created a JKS keystore and generated a CSR, then imported the signed cert and intermediate and root CA certs. Used this keystore on Tomcat without problems. Now I want to use the same cert for Apache2 http server on the same machine. I actually want to set up mod_jk to redirect /*.jsp and servlets paths to Tomcat and serve the static content and PHP from Apache2. I tried to convert JKS to PKCS12 with keytool to afterwards handle it with openssl with a command like this: keytool -importkeystore -srckeystore foo.jks \ -destkeystore foo.p12 \ -srcstoretype jks \ -deststoretype pkcs12 The problem is only the cert is exported but not the rest of the chain. I actually used this keystore on Apache and it complained about key and cert don't matching (not sure if it's related to the chain or not). Can anyone point me on the right direction? I am not a server guy and I am kinda lost with all this things :-(

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• Running Webapp on Mac in UTC (either changing MacBook timezone or tomcat timezone)

  - by Andy A

  To run my web app, I need to set my timezone to UTC on my MacBook. I can do this temporarily by opening a Konsole and entering sudo ln -sf /usr/share/zoneinfo/UTC /etc/localtime However, my timezone returns to normal when I restart my machine! Any advice? Edit : The response to this question by 'Celada' implies that I can just make my Server UTC. I am using Apache Tomcat 7. Adding to Celada's response, how can I make it UTC? Update - 3rd April : Following Celada's response, I have tried adding SetEnv TZ UTC at the top of startup.sh. This didn't seem to make a difference. After some research, I tried adding export JAVA_OPTS="-Duser.timezone=UTC" to startup.sh, but this too had no effect. Am I adding the correct command to the correct file?

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• Git version control with multiple users

  - by ignatius

  Hello, i am a little bit lost with this issue, let me explain you my problem: I want to setup a git repository, three of four users will contribute, so they need to download the code and shall be able to upload their changes to the server or update their branch with the latest modifications. So, i setup a linux machine, install git, setup the repository, then add the users in order to enable the acces throught ssh. Now my question is, What's next?, the git documentation is a little bit confusing, i.e. when i try from a dummy user account to clone the repository i got: xxx@xxx-desktop:~/Documentos/git/test$ git clone -v ssh://[email protected]/pub.git Initialized empty Git repository in /home/xxx/Documentos/git/test/pub/.git/ [email protected]'s password: fatal: '/pub.git' does not appear to be a git repository fatal: The remote end hung up unexpectedly is that a problem of privileges? need any special configuration? i want to avoid using git-daemon or gitosis, sorry, maybe my question sound silly but git is powerfull but i admit not so user friendly. Thanks Br

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• AWS RDS MySQL remote connection extremely slow

  - by nute

  I have a site hosted on AWS EC2 (Elastic Beanstalk), with a MySQL database hosted on AWS RDS. Everything works fine on the production server, fast and all. However when I try to connect remotely from my local machine, it sometimes gets extremely slow (like 4 minutes to load the list of tables), or simply times out. I added my IP in the security group (which I did correctly, since it sometimes works). When it doesn't work, I at the same time check the prod server and it still looks good.

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• Google Chrome Freezes ALL the time

  - by Zach Russell

  I'm running the most recent version of Google Chrome. I have had this computer for three weeks now with no problems, now today it just WON'T work for me. I am running windows 8 with a machine that can more than handle Chrome. It keeps freezing up literally every five seconds then it unfreezes. I cannot click links or scroll, but I can switch tabs. I have tried several things. Uninstalling Google Chrome Reinstalling Chrome but not logging in Deleting All plugins including Flash Creating a new user and accessing chrome from there This is insanely frustrating and would be forever indebted to whomever helped me solve this problem. I cannot imagine what it is. Thank you in advance!

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• western digital caviar black. EXT4-fs error [migrated]

  - by azat

  Recently I update my HDD on desktop machine, and bought WD Caviar Black. But after I format & copy information to it (using dd), and fix partitions size: I have next errors in kern.log: Aug 27 16:04:35 home-spb kernel: [148265.326264] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 9054, 32254 clusters in bitmap, 32258 in gd Aug 27 16:07:11 home-spb kernel: [148421.493483] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 9045, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:17 home-spb kernel: [148546.481693] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 10299, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:17 home-spb kernel: [148546.487147] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.258711] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4345, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.277591] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.278202] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4344, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.284760] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.291983] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 9051, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.297495] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.297916] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 9050, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.297940] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.303213] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4425, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.312127] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.312487] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4424, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.317858] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.322231] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4336, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.326250] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.326599] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 4335, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.332397] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.341957] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 5764, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.350709] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:42 home-spb kernel: [148572.351127] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 5763, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:42 home-spb kernel: [148572.355916] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:43 home-spb kernel: [148572.401055] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 10063, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:43 home-spb kernel: [148572.404357] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:43 home-spb kernel: [148572.414699] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 10073, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:43 home-spb kernel: [148572.420411] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. Aug 27 16:09:43 home-spb kernel: [148572.493933] EXT4-fs error (device sdc2): ext4_mb_generate_buddy:739: group 9059, 32254 clusters in bitmap, 32258 in gd Aug 27 16:09:43 home-spb kernel: [148572.493956] JBD2: Spotted dirty metadata buffer (dev = sdc2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. One time, machine rebooted (not manually), when I turn it on, it runs fsck on /dev/sdc2 and fix some errors and some files are missing on /dev/sdc2 I'v check /dev/sdc2 for badblocks, it doesn't have it ( using e2fsck -c /dev/sdc2 ) Here is the output of fsck http://pastebin.com/D5LmLVBY What else I can do to understand what's wrong here? BTW for /dev/sdc1 no message like that, in kern.log Linux version: 3.3.0 Distributive: Debian wheezy

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• Uninstalled programs cleaner

  - by ldigas

  Generally, I'm looking for a recommendation for an uninstalled programs cleaner ? What is it ? You have a program, you uninstall it, and it leaves a bunch of crap on your machine, starting from registry entries, to shortcuts that lead nowhere, up to a bunch of no more used files in Program Files and so ... Registry cleaners usually do some of this stuff, but 'twas wondering, what are good tools that have it all in one package ? I know such tools exist, 'cause in the past I've met with a few. Only I didn't need them then ;)

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• .NET CoffeeScript Handler

  - by Liam McLennan

  After more time than I care to admit I have finally released a rudimentary Http Handler for serving compiled CoffeeScript from Asp.Net applications. It was a long and painful road but I am glad to finally have a usable strategy for client-side scripting in CoffeeScript. Why CoffeeScript? As Douglas Crockford discussed in detail, Javascript is a mixture of good and bad features. The genius of CoffeeScript is to treat javascript in the browser as a virtual machine. By compiling to javascript CoffeeScript gets a clean slate to re-implement syntax, taking the best of javascript and ruby and combining them into a beautiful scripting language. The only limitation is that CoffeeScript cannot do anything that javascript cannot do. Here is an example from the CoffeeScript website. First, the coffeescript syntax: reverse: (string) -> string.split('').reverse().join '' alert reverse '.eeffoC yrT' and the javascript that it compiles to: var reverse; reverse = function(string) { return string.split('').reverse().join(''); }; alert(reverse('.eeffoC yrT')); Areas For Improvement ;) The current implementation is deeply flawed, however, at this point I’m just glad it works. When the server receives a request for a coffeescript file the following things happen: The CoffeeScriptHandler is invoked If the script has previously been compiled then the compiled version is returned. Else it writes a script file containing the CoffeeScript compiler and the requested coffee script The process shells out to CScript.exe to to execute the script. The resulting javascript is sent back to the browser. This outlandish process is necessary because I could not find a way to directly execute the coffeescript compiler from .NET. If anyone can help out with that I would appreciate it.

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• VM can't connect to outside in bridged mode

  - by Kamal

  I am not able to ping any machine(not even the host) from Guest VM in bridged mode. But I got an IP which is on the same subnet as host. I can ping my guest VM from the host and can use ssh to connect to the guest. I am using Vmware workstation 6.5. Guest VM is a centos VM and host is windows xp. Every thing works fine in NAT mode. Any clues as to what could be happening. I tried disabling all the firewalls I have.

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• SuSE always logs a user in TVM session

  - by rohan

  Hello all, I recently installed Suse Linux enterprise Desktop 11 on my box. I created an user and logged in first time into a GNOME session without any problems. Last time I logged in I selected the session as TWM and that got me into the T windows manager just fine. Now when I log out and try to log back into a GNOME session, it will still log me into the TVM session. I have tried restarting the box but that has not helped. However, when I remote log in to the machine it will let me got on the GNOME session just fine. I'm guessing this is probably a really simple fix, however I am a Linux newbie and doing a google search isn't yielding me what I'm looking for. Thanks in advance for your help, Rohan

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• SuSE always logs a user in TVM session

  - by rohan

  Hello all, Our sa recently installed Suse Linux enterprise Desktop 11 on my work box and I logged in first time into a GNOME session without any problems. Last time I logged in I selected the session as TWM and that got me into the T windows manager just fine. Now when I log out and try to log back into a GNOME session, it will still log me into the TVM session. I have tried restarting the box but that has not helped. Though when I remote log in to the machine it will let me get on the GNOME session just fine. I'm guessing this is probably a really simple fix, however I am a Linux newbie and doing a google search isn't yielding me what I'm looking for. My sa cant figure what is wrong either Thanks in advance for your help, Rohan

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