[Bug 1028470] Re: apache2+ssl hangs on high load
** Description changed: Apache2 stops accepting connections when using mod_ssl and having more than 1000 processes running. This is only happening on ubuntu 12.04 and only with mod_ssl enabled. Steps to reproduce: - take a clean install of ubuntu 12.04 server 64bit (i use english installer and all standard settings) - execute following commands as root: $ apt-get update $ apt-get upgrade $ apt-get install apache2-mpm-prefork - change /etc/apache2/apache2.conf to start at least 1001 processes: IfModule mpm_prefork_module ServerLimit 1500 StartServers 1500 MinSpareServers 1400 MaxSpareServers 1500 MaxClients 1500 MaxRequestsPerChild 1200 /IfModule - enable mod_ssl and restart apache: $ a2enmod ssl $ service apache2 restart [no further configuration changes requred, i did not configure any ssl hosts, only enabled the module] - verify, that apache is running at least 1001 processes $ ps ax | grep apache | wc -l 1502 - verify you can connect to localhost: $ curl http://localhost/ htmlbodyh1It works!/h1 pThis is the default web page for this server./p pThe web server software is running but no content has been added, yet./p /body/html - start high load: $ ab -n 5000 -c 1000 http://localhost/ This is ApacheBench, Version 2.3 $Revision: 655654 $ Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 500 requests apr_poll: The timeout specified has expired (70007) Total of 998 requests completed - ready, now apache is not working properly: $ curl -v http://localhost/ * About to connect() to localhost port 80 (#0) * Trying 127.0.0.1... connected GET / HTTP/1.1 User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3 Host: localhost Accept: */* . silence There are no errors to find in the logs. After restarting apache it will work for some time, but continue crashing regurally, if you have some traffic coming to the server. In my tests i sometimes had crashes even with very few users connecting to the servers. For greater reproducibility however you will need this high connections number for ab. This is reproducible, happening every time and i also tested this on 3 different machines. - This is specific to 12.04, as i have the same setup working properly on 11.10. - I'm aware of that 1000 Processes will consume a plenty of ram. The machine that is supposed + This is specific to 12.04, as i have the same setup working properly on 11.10 and 12.10. + I'm aware of that 1000 Processes will consume a lot of ram. The machine that is supposed to run this config has 32GB, so this should not be the problem here. Notice: - apache crashed only with mod_ssl enabled - apache crashed only with 1000 processes: 1000 processes runs fine, 1001 will produce a crash Additional information: 1) The release of Ubuntu you are using $ lsb_release -rd Description: Ubuntu 12.04 LTS Release: 12.04 2) The version of the package you are using $ apt-cache policy apache2-mpm-prefork apache2-mpm-prefork: Installed: 2.2.22-1ubuntu1 Candidate: 2.2.22-1ubuntu1 Version table: *** 2.2.22-1ubuntu1 0 500 http://de.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status 3) What you expected to happen i expect apache to handle the 5000 requests as usual and continue accepting connections afterwards 4) What happened instead apache handles only 1000 requests and stops accepting new connections at all, which is a disaster for any website running on the host -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to apache2 in Ubuntu. https://bugs.launchpad.net/bugs/1028470 Title: apache2+ssl hangs on high load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1028470/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1096081] Re: server reboots because of php5 cron job
Thanks for your comments. We had other problems with this server as well. We had upgraded to the newest kernel and he seemed stable, but then this occurred. After posting this bug we decided to replace te server. The replacement has not given any troubles yet, so I think you are right to claim that it might be hardware related. We have done several hardware tests without any issues, but i guess that's no guarantee. Let's close this bug as being not rsolved. P.s. Sorry for the wrong status. The next time I'll put it on status 'new' instead... ** Changed in: php5 (Ubuntu) Status: Incomplete = Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in Ubuntu. https://bugs.launchpad.net/bugs/1096081 Title: server reboots because of php5 cron job To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1096081/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1107099] [NEW] Having an invalid transfer-source makes bind9 silently just ignore transfers
Public bug reported: Having a transfer-source set to an ip the machine does not have (due to historical reasons, ip change etc) will make zone transfers become silently ignored.. A log entry comes when the master notifies, but then nothing. Jan 27 19:37:31 XXX named[27432]: client YYY#33048: received notify for zone 'ZZZ' and nothing more happens. No warning is printed at startup either. Description:Ubuntu 12.04.1 LTS Release:12.04 bind9: Installed: 1:9.8.1.dfsg.P1-4ubuntu0.5 Candidate: 1:9.8.1.dfsg.P1-4ubuntu0.5 Version table: *** 1:9.8.1.dfsg.P1-4ubuntu0.5 0 500 http://se.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages 500 http://se.archive.ubuntu.com/ubuntu/ precise-security/main i386 Packages 100 /var/lib/dpkg/status 1:9.8.1.dfsg.P1-4 0 500 http://se.archive.ubuntu.com/ubuntu/ precise/main i386 Packages ** Affects: bind9 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to bind9 in Ubuntu. https://bugs.launchpad.net/bugs/1107099 Title: Having an invalid transfer-source makes bind9 silently just ignore transfers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1107099/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1100096] Re: open-vm-dkms 2012.10.14-874563-0ubuntu1: open-vm-tools kernel module failed to build
** Branch linked: lp:~n-muench/ubuntu/raring/open-vm-tools/open-vm-tools .december-merge -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to open-vm-tools in Ubuntu. https://bugs.launchpad.net/bugs/1100096 Title: open-vm-dkms 2012.10.14-874563-0ubuntu1: open-vm-tools kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/open-vm-tools/+bug/1100096/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1088053] Re: Kernel needs to provide FIFREEZE/FITHAW ioctl so that open-vm-dkms can build
** Branch linked: lp:~n-muench/ubuntu/raring/open-vm-tools/open-vm-tools .december-merge -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to open-vm-tools in Ubuntu. https://bugs.launchpad.net/bugs/1088053 Title: Kernel needs to provide FIFREEZE/FITHAW ioctl so that open-vm-dkms can build To manage notifications about this bug go to: https://bugs.launchpad.net/open-vm-tools/+bug/1088053/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1100096] Re: open-vm-dkms 2012.10.14-874563-0ubuntu1: open-vm-tools kernel module failed to build
I had to redo your patch Hugo, your path was wrong -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to open-vm-tools in Ubuntu. https://bugs.launchpad.net/bugs/1100096 Title: open-vm-dkms 2012.10.14-874563-0ubuntu1: open-vm-tools kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/open-vm-tools/+bug/1100096/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1107400] [NEW] Request upgrade to 3.4.5
Public bug reported: Hello, The latest Zookeeper is now 3.4.5 [1] which adds Kerberos authentication of clients [2], multi-updates, an improved REST API and improved operational support [3]. Cloudera considers 3.4.4 the first stable release in the 3.4.x line and as such are including it in their CDH4.2 release [4]. It would be great if the Ubuntu package was updated. I've opened a bug in Debian to request the update, which could be pulled into Ubuntu [5]. Thank you, Blair [1] http://zookeeper.apache.org/doc/r3.4.5/ [2] https://issues.apache.org/jira/browse/ZOOKEEPER-938 [3] http://blog.cloudera.com/blog/2011/11/apache-zookeeper-3-4-0-has-been-released/ [4] http://blog.cloudera.com/blog/2012/09/apache-zookeeper-3-4-4-has-been-released/ [5] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699120 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: zookeeper 3.3.6+dfsg-1ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2 Uname: Linux 3.5.0-22-generic x86_64 ApportVersion: 2.6.1-0ubuntu9 Architecture: amd64 Date: Sun Jan 27 18:41:08 2013 InstallationDate: Installed on 2012-01-06 (387 days ago) InstallationMedia: Ubuntu 11.10 Oneiric Ocelot - Release amd64+mac (20111011) MarkForUpload: True PackageArchitecture: all ProcEnviron: SHELL=/bin/bash TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 XDG_RUNTIME_DIR=set SourcePackage: zookeeper UpgradeStatus: Upgraded to quantal on 2013-01-01 (26 days ago) ** Affects: zookeeper (Ubuntu) Importance: Undecided Status: New ** Affects: zookeeper (Debian) Importance: Unknown Status: Unknown ** Tags: amd64 apport-bug raring upgrade-software-version ** Bug watch added: Debian Bug tracker #699120 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699120 ** Also affects: zookeeper (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699120 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to zookeeper in Ubuntu. https://bugs.launchpad.net/bugs/1107400 Title: Request upgrade to 3.4.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zookeeper/+bug/1107400/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1107400] Re: Request upgrade to 3.4.5
** Changed in: zookeeper (Debian) Status: Unknown = New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to zookeeper in Ubuntu. https://bugs.launchpad.net/bugs/1107400 Title: Request upgrade to 3.4.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zookeeper/+bug/1107400/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1078241] Re: package mysql-server-5.5 5.5.28-0ubuntu0.12.04.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
[Expired for mysql-5.5 (Ubuntu) because there has been no activity for 60 days.] ** Changed in: mysql-5.5 (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mysql-5.5 in Ubuntu. https://bugs.launchpad.net/bugs/1078241 Title: package mysql-server-5.5 5.5.28-0ubuntu0.12.04.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.5/+bug/1078241/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1077594] Re: package postfix 2.7.0-1ubuntu0.2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 75
[Expired for postfix (Ubuntu) because there has been no activity for 60 days.] ** Changed in: postfix (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1077594 Title: package postfix 2.7.0-1ubuntu0.2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 75 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1077594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1074713] Re: package vsftpd 2.3.5-1ubuntu2 failed to install/upgrade: le sous-processus script post-removal installé a retourné une erreur de sortie d'état 1
[Expired for vsftpd (Ubuntu) because there has been no activity for 60 days.] ** Changed in: vsftpd (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vsftpd in Ubuntu. https://bugs.launchpad.net/bugs/1074713 Title: package vsftpd 2.3.5-1ubuntu2 failed to install/upgrade: le sous- processus script post-removal installé a retourné une erreur de sortie d'état 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vsftpd/+bug/1074713/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1074551] Re: package racoon 1:0.8.0-9ubuntu2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1
[Expired for ipsec-tools (Ubuntu) because there has been no activity for 60 days.] ** Changed in: ipsec-tools (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ipsec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1074551 Title: package racoon 1:0.8.0-9ubuntu2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ipsec-tools/+bug/1074551/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1073287] Re: tgt-admin fails to read configuration
[Expired for tgt (Ubuntu) because there has been no activity for 60 days.] ** Changed in: tgt (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to tgt in Ubuntu. https://bugs.launchpad.net/bugs/1073287 Title: tgt-admin fails to read configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tgt/+bug/1073287/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1070093] Re: package slapd (not installed) failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
[Expired for openldap (Ubuntu) because there has been no activity for 60 days.] ** Changed in: openldap (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/1070093 Title: package slapd (not installed) failed to install/upgrade: le sous- processus script post-installation installé a retourné une erreur de sortie d'état 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/1070093/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
