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https://issues.apache.org/jira/browse/DIRMINA-925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Gregoire closed DIRMINA-925.
---------------------------------
Resolution: Not A Problem
After considering responses, I can't say this is actually a bug in Mina.
> Unresponsive I/O once file limit is reached
> -------------------------------------------
>
> Key: DIRMINA-925
> URL: https://issues.apache.org/jira/browse/DIRMINA-925
> Project: MINA
> Issue Type: Bug
> Components: Transport
> Affects Versions: 2.0.4, 2.0.5, 2.0.7
> Environment: Linux
> Reporter: Paul Gregoire
>
> I had this issue reported to the red5 issues list and it reminded me of an
> issue on an internal company project that uses Mina but has nothing to do
> with red5 itself. So the common part in these two cases now is Mina, so I am
> posting this here.
> The gist of both situations is that once the file limit is reached on the os,
> mina still attempts to do its work but an exception occurs which eventually
> runs the box of resources.
> What steps will reproduce the problem?
> 1. Use telnet to connect to a servlet's socket until no more connections are
> allowed (open files limit is reached)
> 2. Use telnet to connect to the tomcat port (5080)
> 3. Observe red5.logs shown below will repeat until the hard drive fills
> java.io.IOException: Too many open files
> at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
> ~[na:1.6.0_22]
> at
> sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:163)
> ~[na:1.6.0_22]
> at
> org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:170)
> ~[mi
> na-core-2.0.4.jar:na]
> at
> org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:51)
> ~[min
> a-core-2.0.4.jar:na]
> at
> org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.processHandles(AbstractPolling
> IoAcceptor.java:501) ~[mina-core-2.0.4.jar:na]
> at
> org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.
> java:442) ~[mina-core-2.0.4.jar:na]
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
> [mina-core-2.0
> .4.jar:na]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> [na:1.6.0_22]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> [na:1.6.0_22]
> at java.lang.Thread.run(Thread.java:679) [na:1.6.0_22]
> 2012-12-13 15:42:28,521 [NioSocketAcceptor-2] WARN
> o.a.m.util.DefaultExceptionMonitor - Unexpected exception.
> Red5 issue #315 - Red5 gets into a tight loop writing error messages if file
> open limit is exceeded
> https://code.google.com/p/red5/issues/detail?id=315
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