Swap space maxing out - JVM dying

Posted by travega on Server Fault See other posts from Server Fault or by travega
Published on 2012-10-23T04:15:27Z Indexed on 2012/10/23 5:09 UTC
Read the original article Hit count: 548

Filed under:

apache2

|

ubuntu

|

memory

|

swap

|

jvm

I have a server running 3 WordPress instances, MySql, Apache and the play framework 2.0 on 64m initial & max heap. If I increase the max heap of the JVM that play is running in even by 16m I see the 128m of swap space steadily fill up until the the JVM dies.

I notice that it is only when I am plugging away at the wordpress sites that the JVM will die. I assume this is because the JVM is not asking for memory at the time so gets collected.

I notice that when I restart Apache I reclaim about half of my swap and RAM. So is there some way I can configure apache to consume less memory? Also what could be causing the swap space to get so heavily thrashed with just 16m added to the max heap size of the JVM?

Server running: Ubuntu 12.04

RAM: 408m

Swap: 128m

Apache mods:

© Server Fault or respective owner

Related posts about apache2

apache2: Could not open configuration file /etc/apache2/apache2.conf: Permission denied

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I recently upgraded Ubuntu to the latest LTS edition on my work laptop, which I use as a LAMP development platform. The upgrade was from 12.4 to 14.4. Now I'm having trouble getting apache up and running again. Here is the output from an attempt: antonc@antonc-laptop:/etc/apache2$ sudo service apache2… >>> More
Apache segfault glibc segfault

as seen on Server Fault - Search for 'Server Fault'
I keep getting (about every 5-6 hours) this segfault in apache: [Tue Jun 26 12:43:10 2012] [notice] child pid 26810 exit signal Aborted (6) *** glibc detected *** /usr/sbin/apache2: free(): invalid pointer: 0xb68c2628 *** ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(+0x6ff22)[0xb75aef22] /lib/i386-linux-gnu/libc… >>> More
Localhost not working after installing PHP on Mountain Lion

as seen on Server Fault - Search for 'Server Fault'
I've installed php using brew install php54 --with-mysql, I've set up all the path correctly. which php will give me /usr/local/bin/php php -v will give me PHP 5.4.8 (cli) (built: Nov 20 2012 09:29:31) php --ini will give me: Configuration File (php.ini) Path: /usr/local/etc/php/5.4 Loaded Configuration… >>> More
Apache 2 Virtual Hosts no working on OSX 10.6

as seen on Server Fault - Search for 'Server Fault'
This is my first MacBook and I'm trying to get virtual hosts up and running so as it's going to be my dev machine. I've got apache/php/mysql running fine, the problem is that what ever address I go to I just get one of the virtual hosts I've setup. I can't even get to the root site anymore. I had… >>> More
apache2 error Could not open configuration file /etc/apache2/conf.d/: No such file or directory

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have just upgraded my Ubuntu 13.10 and apache2 is not working. When I try to start the apache2 server it is printing following errors: * Starting web server apache2 * The apache2 configtest failed. Output of config test was: apache2: Syntax error on line 263 of /etc/apache2/apache2.conf: Could… >>> More

Related posts about ubuntu

Cannot update, apt-get cannot fetch index files

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a fresh install of Ubuntu 11.10 from the iso 'ubuntu-11.10-desktop-amd64.iso'. I installed this in VMWare Fusion 4.1.1 running on OSX 10.7.3. When setting up the VM, I allowed easy install to take care of creating my user and installing VMWare tools. No problems during installation, everything… >>> More
'sudo apt-get update' error on Ubuntu 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
When I type in 'sudo apt-get update' I get this mohd-arafat-hossain@TUD:~$ sudo apt-get update [sudo] password for mohd-arafat-hossain: Ign http://bd.archive.ubuntu.com precise InRelease Ign http://bd.archive.ubuntu.com precise-updates InRelease Ign http://bd.archive.ubuntu… >>> More
Opening Skype, Opera, OpenOffice logs me off

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Whats common among Skype, Opera, OpenOffice in Ubuntu ? Whenever I open these applications I get logged off and shows back me the login screen. This started happening since the 10.10 upgrade. Forgot to mention : Yes, its x64.Each time I open these applications, the UI shows and then crashes. I… >>> More
Update information outdated

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a warning triangle that my update information is outdated, the last update was 12 days ago. I use Ubuntu 11.10. A run of sudo apt-get update produces the following output: Ign http://ppa.launchpad.net oneiric InRelease Ign http://de.archive.ubuntu.com oneiric InRelease … >>> More
ubuntu/apt-get update said "Failed to Fetch http:// .... 404 not found"

as seen on Server Fault - Search for 'Server Fault'
Hi all, I'm trying to run apt-get update on ubuntu 9.10 I've configured my proxy server and I can access the internet without any problem: /etc/apt# wget "http://www.google.com" Resolving (...) Proxy request sent, awaiting response... 200 OK Length: 292 [text/html] Saving to: `index.html' 100%[=================================================================================================================================>]… >>> More