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Confluence log error - Socket accept failed - Too many open files

stuartu

I recently upgraded a copy of our Confluence 3.2.1 and upgraded to 4.1.6. This morning I installed the Plugin License Manager (plugin) and the Essentials Plugin Pack (from Adaptavisit) + licensed it.

I am now seeing the below message in our catalina.out file. I have bounced Confluence a few times, but still seeing these repeatedly. Is this a configuration parameter in my setenv.sh that needs to be tweaked, or perhaps a Linux issue (we are on RHEL 5.7). I can not see any errors in /var/log to show it is an o/s issue. Any suggestions appreciated.

12/03/2012 12:18:11 PM org.apache.tomcat.util.net.JIoEndpoint$Acceptor run
SEVERE: Socket accept failed
java.net.SocketException: Too many open files
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408)
at java.net.ServerSocket.implAccept(ServerSocket.java:462)
at com.sun.net.ssl.internal.ssl.SSLServerSocketImpl.accept(SSLServerSocketImpl.java:261)
at org.apache.tomcat.util.net.jsse.JSSESocketFactory.acceptSocket(JSSESocketFactory.java:178)
at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:352)
at java.lang.Thread.run(Thread.java:662)

Accepted answers

BernardoA

Actually this error could be a bunch of errors, but please check this KB that may help you:

https://confluence.atlassian.com/display/JIRAKB/Loss+of+Functionality+due+to+Too+Many+Open+Files+Error

All comments

David at David Simpson Apps

Is that the full stack trace? Or are you missing soem of it?

stuartu

No, unfortunately that is all there is.

stuartu

No, unfortunately that is all there is.

JamieA

You can check how many files are opened with lsof, and tweak your ulimit accordingly.

RoBo

We experience exact this issue after having upgraded from Confluence 4.3 to 5.1.3. No real strange things to see with lsof, ulimit is unlimited. maximum allowed open files is 800k (and this limit doesn't seem to be reached).

When this happens, then Confluence seems 'hanging'.

Solution not (yet) found... Idea's are welcomed...
Maybe this is a solution?

BernardoA

Actually this error could be a bunch of errors, but please check this KB that may help you:

https://confluence.atlassian.com/display/JIRAKB/Loss+of+Functionality+due+to+Too+Many+Open+Files+Error

Andrei [errno]

have you tried to update a number of open files per process? (bump it up from 1024)

Janet Albion

you might want to check what is the size of the maxThread in your tomcat's server.xml