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From "Gangl, Michael E (388K)" <Michael.E.Ga...@jpl.nasa.gov>
Subject Strange Zookeeper messages?
Date Wed, 27 Oct 2010 19:13:38 GMT
I'm running:

hbase-0.20.6
zookeeper-3.2.2
hadoop-0.20.2

Everything on a single machine as I'm testing out some M/R -> hbase code and everything
on that front is working fine. After a period of inactivity, however, my log was flooded (millions)
of the same 'WARN' message below. Any ideas on this? I couldn't find this issue anywhere else,
and am wondering how to prevent it or stop the flooding of information (other than turning
the logging off or to a higher level).

Thanks in advance

Mike


log:

2010-10-27 11:43:02,022 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn@518] - Exception
causing close of session 0x0 due to java.io.IOException: Read error
2010-10-27 11:43:02,022 - INFO  [NIOServerCxn.Factory:2181:NIOServerCnxn@857] - closing session:0x0
NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/137.79.16.114:2181 remote=/137.78.237.31:43731]
2010-10-27 11:43:02,025 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn@518] - Exception
causing close of session 0x0 due to java.io.IOException: Read error
2010-10-27 11:43:02,025 - INFO  [NIOServerCxn.Factory:2181:NIOServerCnxn@857] - closing session:0x0
NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/137.79.16.114:2181 remote=/137.78.237.31:35002]
2010-10-27 11:43:53,218 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn@518] - Exception
causing close of session 0x0 due to java.io.IOException: Len error 1195725856
2010-10-27 11:43:53,218 - INFO  [NIOServerCxn.Factory:2181:NIOServerCnxn@857] - closing session:0x0
NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/137.79.16.114:2181 remote=/137.78.237.31:39252]
2010-10-27 11:44:15,496 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn@518] - Exception
causing close of session 0x0 due to java.io.IOException: Len error 1212501072
2010-10-27 11:44:15,496 - INFO  [NIOServerCxn.Factory:2181:NIOServerCnxn@857] - closing session:0x0
NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/137.79.16.114:2181 remote=/137.78.237.31:45169]
2010-10-27 11:44:59,654 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.net.SocketException: Invalid argument
        at sun.nio.ch.Net.setIntOption0(Native Method)
        at sun.nio.ch.Net.setIntOption(Net.java:157)
        at sun.nio.ch.SocketChannelImpl$1.setInt(SocketChannelImpl.java:406)
        at sun.nio.ch.SocketOptsImpl.setBoolean(SocketOptsImpl.java:38)
        at sun.nio.ch.SocketOptsImpl$IP$TCP.noDelay(SocketOptsImpl.java:284)
        at sun.nio.ch.OptionAdaptor.setTcpNoDelay(OptionAdaptor.java:48)
        at sun.nio.ch.SocketAdaptor.setTcpNoDelay(SocketAdaptor.java:268)
        at org.apache.zookeeper.server.NIOServerCnxn.<init>(NIOServerCnxn.java:810)
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.createConnection(NIOServerCnxn.java:199)
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:233)
2010-10-27 11:44:59,655 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:223)
2010-10-27 11:44:59,655 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:239)
2010-10-27 11:44:59,655 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:223)
2010-10-27 11:44:59,656 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:223)
2010-10-27 11:44:59,656 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException
        at org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:239)
2010-10-27 11:44:59,656 - WARN  [NIOServerCxn.Factory:2181:NIOServerCnxn$Factory@249] - Ignoring
exception
java.lang.NullPointerException

And this continues for as long as I let it. Millions of messages.


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