java.io.IOException: Too many open files

[staufj22]

I'm running version 5.0GA on Debian. Every 2 or 3 weeks my Zimbra install would stop responding, and I'll find the below messages.
Has anyone else seen this?

2008-01-24 05:58:24,802 WARN  [btpool0-3 - Acceptor0 SslSelectChannelConnector@0.0.0.0:7071] [] log - EXCE
PTION
java.io.IOException: Too many open files
        at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145)
        at org.mortbay.jetty.nio.SelectChannelConnector$1.acceptChannel(SelectChannelConnector.java:75)
        at org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:485)
        at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:168)
        at org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
        at org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:514)
        at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)

[dijichi2]

check your ulimits (ulimit -a). i think from memory -n resets files?

[staufj22]

Hrm.. ok, I changed the open files limit to 65536, up from the 1024 default.
Hope that takes care of it.