Having a problem with our MINA server. The server got hung last night. I
was able to telnet into it, but it never responded with a welcome prompt,
and would not accept any of my commands. Linux showed that it had 82 open
sockets to the client machines, all of them in SYN_RECV state.
Worse, the log was 4.7GB in size, full of broken pipe errors. (3,366,455
occurrences of it!) Stack trace is as follows:
java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:122)
at sun.nio.ch.IOUtil.write(IOUtil.java:93)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:352)
at
org.apache.mina.transport.socket.nio.NioProcessor.write(NioProcessor.java:185)
at
org.apache.mina.transport.socket.nio.NioProcessor.write(NioProcessor.java:41)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.writeBuffer(AbstractPollingIoProcessor.java:776)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.flushNow(AbstractPollingIoProcessor.java:713)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.flush(AbstractPollingIoProcessor.java:648)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.access$500(AbstractPollingIoProcessor.java:56)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:895)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Anyone have any ideas?
We're running MINA 2.0M6 on OpenJDK 1.6 on CentOS 5.4.
Thanks,
DR
