Openfire (Wildfire) Stops Accepting New Connections
There’s an issue with Openfire (formerly known as Wildfire - the open source Jabber-based IM server) and large amounts of users. The Openfire server stops accepting new connections when approximately 1000+ concurrent users are logged in. This issue seems to be caused by a maximum open file limit per process being hit. I figured out the following solution after a half day or so of researching and testing. This applies to Fedora Core 7 Linux, but should work with any Linux-based OS capable of running Openfire.
To permanently increase the maximum open file limits:
vi /etc/security/limits.conf
Append the following lines to the end of the file:
* hard nofile 64000 root hard nofile 64000 daemon hard nofile 64000
A reboot is required for these changes to take effect. I’m not sure of the issues this may cause with the OS, but so far I haven’t run into any.
Use at your own risk!
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Tags: openfire, wildfire, linux, fedora, fedora core 7, open file limit, root, jabber, im, limits.conf
Posted: May 15th, 2008
Comments: 2
Comments
Comment from tk999
Time: July 28, 2008, 4:35 pm
Question, what is the maximum connections do you have after the patch?
I want to get some estimated number to figure out how many openfire server do I need.
Thanks
Comment from zach
Time: July 29, 2008, 6:37 am
I am unsure of the maximum number of connections as we haven’t run into a problem since… However, theoretically its about 64,000.
This limit is on the OS side though…There may be some limit on the openfire side.
Good luck!
Zach
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