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  • Find which php scripts cause high CPU with php-cgi

    - by Oli
    Background: I maintain a server for a client who has half a dozen Wordpress sites on. They all have the W3 Total Cache plugin installed and eAcellerator is installed (might be APC). All the PHP sites run through a single batch of fastcgi php-cgi processes (it's actually php-fpm but I'm not sure if that makes a difference). Problem: php-cgi's CPU usage is quite high. Not terminally high but high enough to raise an eyebrow. The client wants to add more sites in the future and I want to avoid becoming CPU limited if I can help it. Question: Is there any way I can find the scripts or even just requests that are causing the high CPU. I realise I might not be able to do anything with the results but it would give me a chance.

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  • Macbook Pro 2.66 GHz vs. 2.8 GHz

    - by nevan
    Is there much advantage in getting the higher end Macbook Pro compared to the mid-range one? The differences between the two are: 2.66 GHz vs. 2.8 GHz 256 MB graphics memory vs. 512 MB 3 MB L2 cache vs. 6 MB 320 GB hard drive vs. 500 GB $2000 vs. $2300 I've looked around, but I can't find any direct comparisons for the two machines. I'd be using the machine for development. I generally use a computer for 3 years. I don't really play games, but do use Photoshop regularly. I've heard that once Snow Leopard arrives, the graphics chip will be used to boost the main processor, so I was wondering if getting the one with more graphics memory would be an advantage?

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  • YouTube videos not working

    - by André
    I have a problem with watching YouTube videos. It says: "An error occurred, please try again later". I've tried loading different videos and that's what it says to all the videos I try to watch. I've tried using another browser, clearing cache + cookies etc, but none of that really worked out. My operating system is Windows 7 Home Premium, I use Google Chrome as my browser. And the YouTube videos was able to be watched earlier. I suspect that it has something to do with the PC, since I've got YouTube working on my laptop earlier. Not sure if it still works on my laptop though. Hope I've given enough information for you to help me out with this problem. Feel free to ask if there's anything else you need to know. Hope you can/will help me out. :)

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  • Using Linq methods causes missing references to DependencyObject in WindowsBase

    - by Jason Coyne
    I have some c# source that I want to compile using CodeDom within my application (for a plugin) Everything works fine, except if I use a Linq extension function on some of my collections var dict = new Dictionary<KeyType, ValueType>(); .... dict.Any(KV=>KV.Key == "Some Key); When I try to compile source that has this code, it CodeDom complains that I am missing a reference to DependencyObject in WindowsBase. I do not understand why this is happening. Neither the Dictionary class, or the Any extension method reference that class, which apparently is part of Windows.Forms I would normally just ignore the quirk, make the CodeDom add a reference and move on, but Apparently WindowsBase is special and is not always distributed and I don't want to cause issues for users that may not have it installed correctly.

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  • Identical traffic

    - by Walter White
    Hi all, I am running an application server and logging all requests for analysis purposes later. One interesting trend I noticed last night was, I had a visitor from Texas on FIOS share identical traffic with bluecoat in California. What would cause the traffic to be identical? For every request the visitor made, bluecoat made one subsequently within milliseconds of his request. If it is caching, why would there be identical requests? Wouldn't it go through the cache / proxy on their end, and I would only see the proxied request? I'm just curious, this is an interesting pattern that shows similarities of a DDoS attack, but with far fewer resources. Is it possible that the visitor had malware on their computer? Any other ideas? Walter

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  • BIND - zone not loaded du to errors

    - by Johan Barelds
    After upgrading from Ubuntu 8.04 to 10.04 my DNS isn't working properly anymore. I keep getting this error when I run named-checkzone example.com /var/cache/bind/example.com.zone.db zone example.com/IN: NS 'mx002a.example.com' has no address records (A or AAAA) zone example.com/IN: not loaded due to errors. in /var/cached/bind/example.com.db $TTL 3D @ IN SOA mx002a.example.com. chantra.example.com. ( 200608081 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds ; ; mx002a.example.com IN A 192.168.85.19 example.com. IN NS mx002a.example.com. mx001 60 IN A 192.168.85.17 mx001 60 IN A 192.168.85.18

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  • Oracle Enterprise Manager Logs

    - by idea_
    Hi, I'm attempting to investigate the root cause of the following error which occurs each time a users call an Oracle 10g Forms applet: FRM-92102: A network error has occurred. The Forms Client has attempted to reestablish its connection to the Server 1 time(s) without success. Please check the network connection and try again later. Details... Java Exception: java.io.IOException: Connection failure with 503 This error remained after restarting all my system components: HTTP_Server, OC4J_BI_Forms, Web Cache, Reports Server, etc. The only way to clear this issue was to restart the server entirely. During the downtime, web pages were rendered with the PL/SQL cartridge and being served, so it appears as though this was isolated to forms. Does anybody know which log files may provide clues here? Any help would be much appreciated :) Update: If somebody can provide me with a way or reference to increase the capacity of my web server to minimize these errors, I will accept this as the solution.

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  • Understanding this error: apr_socket_recv: Connection reset by peer (104)

    - by matthewsteiner
    So, if I do some benchmarking with apache benchmark (ab), and I use large numbers of requests. Then sometimes in the middle of a test I get this error. I don't even know what it means. So how can I fix it? Or is it just something that will happen if the server gets too many hits anyway? The problem is, if I run 10,000 hits, it'll all run perfectly. If I run it again, it'll get to 4000 and get the error: apr_socket_recv: Connection reset by peer (104) A little about my setup: I have nginx taking static requests and processing dynamic ones to apache. The file in question is served from cache by nginx, so I guess it's probably got to do with how nginx is handling the requests? Ideas?

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  • convert .htaccess to nginx

    - by Chip Gà Con
    It's me again :( I was trying to install siwapp on my webserver but I couldn't make it work with nginx, here is the .htaccess file content: RewriteCond %{REQUEST_FILENAME} !index.php RewriteRule (.*)\.php$ index.php/$1 RewriteCond $1 !^(index\.php|nhototamsu|assets|cache|xd_receiver\.html|photo|ipanel|automap|xajax_js|files|robots\.txt|favicon\.ico|ione\.ico|(.*)\.xml|ror\.xml|tool|google6afb981101589049\.html|googlec0d38cf2adbc25bc\.html|widget|iradio_admin|services|wsdl) RewriteRule ^(.*)$ index.php/$1 [QSA,L] When I access http://myurl.com/tin-tuc/tuyen-sinh/tu-van/2012/04/25757-phan-van-qua-giua-khoi-a1-va-khoi-a.html ,nginx could display the page correctly, it said: "404 Not Found" (new URL: http://myurl.com/tin-tuc/tuyen-sinh/tu-van/2012/04/25757-phan-van-qua-giua-khoi-a1-va-khoi-a.html)

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  • Varnish Error 503 Service Unavailable

    - by alfish
    On Debian I have Varnish cache in front of apache and get 503 error when I try to get urls which are rarely fetched. I've put 10 min timeout in default.vlc: backend default { .host = "127.0.0.1"; .port = "81"; .connect_timeout = 600s; .first_byte_timeout = 600s; .between_bytes_timeout = 600s; } Also I have in /etc/default/varnish DAEMON_OPTS="-a :80 \ -T localhost:6082 \ -b localhost:81 \ -u varnish -g varnish \ -S /etc/varnish/secret \ -p thread_pools=7 \ -p thread_pool_min=200 \ -p thread_pool_max=5000 \ -p listen_depth=2048 \ -p thread_pool_add_delay=2\ -p lru_interval=1800 \ -h classic,169313 \ -p session_linger=100 \ -p sess_workspace=262144 \ -p connect_timeout=600 \ -p max_restarts=6 \ -s malloc,7G" I appreciate your hints to resove this problem.

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  • Apache Sending "Content-Length : 0" , How to Fix ?

    - by ServerZilla
    Hi, I am using Apache server and it is sending Content-Length = 0 value which is preventing file-downloads, see - http://www.youtubedroid.com/download2.php?v=%5F3XcMEKNws0&title=Akhila+%2CMumbai+reloaded%2CSuper+dancer+2&hq=0 , here are my .htaccess content : SetEnv no-gzip dont-vary Here are headers sent by the server : HTTP/1.1 200 OK Date: Tue, 15 Dec 2009 06:12:11 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 X-Powered-By: PHP/5.2.11 Content-Description: File Transfer Content-Disposition: attachment; filename="Akhila ,Mumbai reloaded,Super dancer 2.mp3" Content-Transfer-Encoding: binary Expires: 0 Cache-Control: must-revalidate, post-check=0, pre-check=0 Pragma: public X-Sendfile: ./tmp/64eb3b185e38af95c15405ffb0606e76.mp3 Content-Length: 0 Keep-Alive: timeout=5, max=95 Connection: Keep-Alive Content-Type: application/octet-stream Pls. tell how to fix this ?

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  • Windows Live Mail treating my Firefox as mobile device

    - by Mussnoon
    I started using Namoroka (firefox 3.6 nighly) yesterday and since then, windows live mail has been treating it like a mobile device. Same thing happens when I try with Minefield (firefox 4 nightly). I've tried loading the default page in Chromium and then pasting the URL to firefox. The sign in page shows alright then, but as soon as I sign in, the mobile inbox shows up again. I've tried clearing the cache+history+cookies everything but nothing's working. Anyone know of a solution?

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  • Using SCons as a build engine for distutils

    - by pygabriel
    I have a python package with some C code needed to build an extension (with some non-trivial building needs). I have used SCons as my build system because it's really good and flexible. I'm looking for a way to compile my python extensions with SCons ready to be distributed with distutils. I want that the user simply types setup.py install and get the extension compiled with SCons instead of the default distutils build engine. An idea that comes to mind is to redefine build_ext command in distutils, but I can't find extensive documentation for it. Any suggestion?

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  • Spring security annotations with EL -- requires debug information compiled in?

    - by HDave
    I am considering using Spring Security annotations for my application, with the EL (expression language) feature. For example: @PreAuthorize("hasPermission(#contact, 'admin')") public void deletePermission(Contact contact, Sid recipient, Permission permission); I need the EL capability because I have built my own ACL implementation. However, to use this capability with the "#contact" type arguments, the Spring documentation says this: You can access any of the method arguments by name as expression variables, provided your code has debug information compiled in. This begs two questions: It is acceptable to have a production application commercially distributed with debug info in it? If not, is there any way around this? Thanks for any guidance on this!

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  • Caching Solutions

    - by dave
    Has anyone done a thorough comparison of AppFabric and NCache or AppFabric and ScaleOut? We are currently looking to implement either AppFabric, NCache or ScaleOut for distributed caching in geographically distant locations and I would like to know anyone's thoughts who has compared them side by side. I appreciate that many people use one or the other and tell me why their chosen solution is great but I am really looking for a comparison of the two products. Such things as what does AppFabric not do or not do well (if anything), partially from a features point of view but also from developer's point of view. Is working with one compared to the other nicer, easier, more flexible, more powerful, etc. There are plenty of lists of features which I can compare but am really looking for a comparison from someone who has perhaps been in a similar position to us and has performed the evaluation that we are about to launch into which will give us some food for thought whilst we do so. Thanks in advance.

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  • How to tell if PAE is hurting me?

    - by James
    I have a couple of servers with 20-30 GB RAM that are running (a variant of) RHEL4. They are currently running the SMP i386 kernel, not x64, not even the hugemem kernel. This means LowMem is confined to < 1G, and thus dentry_cache and ext3_inode_cache to 100M or so each. How can I tell if this is a problem? Here's a typical vmstat report while it's compiling some Java: $ vmstat 10 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 1 0 19493816 394740 922420 0 0 1058 2292 1491 1020 6 3 80 12 2 1 0 19519480 395244 850156 0 0 1179 1412 1329 1195 9 4 75 12 1 1 0 19557368 392616 828344 0 0 1783 1680 1498 1756 14 5 72 9 I don't like the way bi is nonzero when there is so much memory free. I imagine slabtop could point more directly to the problem but I don't really understand how to interpret its output.

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  • C# Monte Carlo Simulation Package Needed

    - by Yunzhou
    I'm relative new to C# and doing a project using Monte Carlo Simulation. Basically my question is the following. I have two uncertain variable inputs, A and B, and they will go through a model and give an output C. So C = f(A,B). I know A's probability distribution (Triangular) and B's probability distribution (Discrete). How can I get the probability distribution of C? What I have done now is that I can generate random numbers based on A's triangular distribution as well as B's discrete distribution. Each pair of randomly generated A and B gives a resultant C. I've run this model 1000 times thus I can get 1000 possible values of C. The difficulty is to get the corresponding probabilities of each value of C. Obviously it's not 1/1000 unless C is uniformly distributed. Is there any Monte Carlo Simulation package/library I can use?

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  • KVM Slow performance on XP Guest

    - by Gregg Leventhal
    The system is very slow to do anything, even browse a local folder, and CPU sits at 100% frequently. Guest is XP 32 bit. Host is Scientific Linux 6.2, Libvirt 0.10, Guest XP OS shows ACPI Multiprocessor HAL and a virtIO driver for NIC and SCSI. Installed. CPUInfo on host: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz stepping : 7 cpu MHz : 3200.000 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid bogomips : 6784.93 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>4194304</currentMemory> <vcpu placement='static' cpuset='0'>1</vcpu> <os> <type arch='x86_64' machine='rhel6.3.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <cpu mode='custom' match='exact'> <model fallback='allow'>SandyBridge</model> <vendor>Intel</vendor> <feature policy='require' name='vme'/> <feature policy='require' name='tm2'/> <feature policy='require' name='est'/> <feature policy='require' name='vmx'/> <feature policy='require' name='osxsave'/> <feature policy='require' name='smx'/> <feature policy='require' name='ss'/> <feature policy='require' name='ds'/> <feature policy='require' name='tsc-deadline'/> <feature policy='require' name='dtes64'/> <feature policy='require' name='ht'/> <feature policy='require' name='pbe'/> <feature policy='require' name='tm'/> <feature policy='require' name='pdcm'/> <feature policy='require' name='ds_cpl'/> <feature policy='require' name='xtpr'/> <feature policy='require' name='acpi'/> <feature policy='require' name='monitor'/> <feature policy='force' name='sse'/> <feature policy='force' name='sse2'/> <feature policy='force' name='sse4.1'/> <feature policy='force' name='sse4.2'/> <feature policy='force' name='ssse3'/> <feature policy='force' name='x2apic'/> </cpu> <clock offset='localtime'> <timer name='rtc' tickpolicy='catchup'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/var/lib/libvirt/images/Server-10-9-13.qcow2'/> <target dev='vda' bus='virtio'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/> </disk>

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  • Blogger (Python) API: How do I retrieve a post by post ID?

    - by larsks
    Having previously obtained a post ID from a call to gdata.blogger.client.add_post()... post = client.add_post(...) post_id = post.get_post_id() ...how do I use that post id to retrieve the post in the future? I thought maybe gdata.blogger.client.Query would be the way to go, but this doesn't support post id as a query term. The example code distributed with the Python gdata module doesn't have an example of this use case, and after poking around gdata.blogger.client.* for a while I'm not making much progress. I could obviously iterate through all the posts in the blog until find the one with the corresponding id, but that would be a terrible, terrible idea.

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  • don't understand pisa(xhtml2pdf) license

    - by sacabuche
    A client ask me to generate PDF in python, but i don't know if i have to pay the license or just use it. what do i have to do? In their web site said: XHTML2PDF is dual-licensed: 1. GNU General Public License Version 2.0 (GPLv2) 2. A commercial license In their docs: pisa is copyrighted by Dirk Holtwick, Germany. pisa is distributed by Dirk Holtwick, Schreiberstraße 2, 47058 Duisburg, Germany. pisa is licensed under the GNU Gerneral Public License version 2. thanks

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  • Raid0 performance degradation?

    - by davy8
    Not sure if this belongs here or on SuperUser, feel free to move as appropriate. I've noticed the performance on my RAID0 setup seems to have degraded over the past months. The throughput is fine, but I think the random access time has increased or something. In use I generally see about 1-5mb/sec when loading stuff in Visual Studio and other apps and it doesn't seem like the CPU is bottlenecking as the CPU utilization is pretty low. I don't recall what Access Time used to be, but HD Tune is reporting 12.6ms Read throughput is showing as averaging about 125MB/sec so it should be great for sequential reads. Defrag daily and it shows fragmentation levels low, so that shouldn't be an issue. Additional info, Windows 7 x64, Intel raid controller on mobo, WD Black 500GB (I think 32mb cache) x2.

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  • Raid0 performance degradation?

    - by davy8
    Not sure if this belongs here or on SuperUser, feel free to move as appropriate. I've noticed the performance on my RAID0 setup seems to have degraded over the past months. The throughput is fine, but I think the random access time has increased or something. In use I generally see about 1-5mb/sec when loading stuff in Visual Studio and other apps and it doesn't seem like the CPU is bottlenecking as the CPU utilization is pretty low. I don't recall what Access Time used to be, but HD Tune is reporting 12.6ms Read throughput is showing as averaging about 125MB/sec so it should be great for sequential reads. Defrag daily and it shows fragmentation levels low, so that shouldn't be an issue. Additional info, Windows 7 x64, Intel raid controller on mobo, WD Black 500GB (I think 32mb cache) x2.

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  • Popularity of Git/Mercurial/Bazaar vs. which to recommend

    - by Will Robertson
    Going by the number of questions on this site for these three distributed version control systems, it seems like Git either is more popular, or is more difficult (hence requiring more questions), or has more features (hence requiring more questions). Or most probably a combination of the three. (Let's say that popularity on this site equates to popularity at large.) Here are the numbers at time of writing: [subversion] or [svn]: 2353 [git]: 726 [mercurial] or [hg]: 169 [bazaar] or [bzr]: 50 The recent historical popularity of Subversion is clearly reflected by the number of questions, indicating at least a small tipping of the scales towards Git over the Mercurial or Bazaar. It's not entirely satisfactory having three competing yet largely equivalent open source products to choose from. Personally I use Git and I'm fine with the other two. But when it comes to recommending one system over the others, I'd like to ask: can we start recommending one safely yet?

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  • Reset Network Load Balancer Connection Pool

    - by bill_the_loser
    I am currently working on load testing a web application on a virtual machine cluster. I am looking for a way to flush the connection pool / NLB cache so that it is like each machine connecting to the NLB is connecting for the first time and doesn't get directed back to the node that it was on last time. This a Windows 2003 Server cluster, behind a Microsoft software based Network Load Balancer. Additional Information: To do the load testing I'm using virtual machines, one for each node on the cluster. Somehow I got two virtual machines connecting to the same node and I'm looking for an easier way to reset those connections without going in to the NLB Manager and stopping and starting each node on the NLB. Update: We went ahead and changed the affinity on all of the nodes of the cluster to none. Now it's a non-issue.

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  • How can I exceed the 60% Memory Limit of IIS7

    - by evilknot
    Pardon if this is more stackoverflow vs. serverfault. It seems to be on the border. We have an application that caches a large amount of product data for an e-commerce application using ASP.NET caching. This is a dictionary object with 65K elements, and our calculations put the object's size at ~10GB. Problem: The amount of memory the object consumes seems to be far in excess of our 10GB calculation. BIGGEST CONCERN: We can't seem to use over 60% of the 32GB in the server. What we've tried so far: In machine.config/system.web (sf doesn't allow the tags, pardon the formatting): processModel autoConfig="true" memoryLimit="80" In web.config/system.web/caching/cache (sf doesn't allow the tags, pardon the formatting): privateBytesLimit = "20000000000" (and 0, the default of course) percentagePhysicalMemoryUsedLimit = "90" Environment: Windows 2008R2 x64 32GB RAM IIS7 Nothing seems to allow us to exceed the 60% value. See attached screenshot of taskman.

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