Sorry, I had a bad subject on the below question.
St.Ack

On Fri, Nov 20, 2009 at 4:22 PM, stack <st...@duboce.net> wrote:

> Below an excerpt from a single node zk quorum that was at heart of a small
> hbase cluster.  Unfortunately the log is not at DEBUG level (I've asked the
> gentleman to up the log level meantime).  What it seems to be reporting is
> that an exception while closing a session caused it to timeout all connected
> sessions.
>
> Here is the line that mentions the exception on close of session.  There is
> no stack trace:
>
> 2009-11-20 03:41:04,766 WARN org.apache.zookeeper.server.NIOServerCnxn:
> Exception causing close of session 0x124bc250d700790 due to
> java.io.IOException: Read error
>
> Is it correct that an error at this stage throws out all connected
> sessions?
>
> Thanks,
> St.Ack
>
>
> 2009-11-20 00:00:04,948 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Connected to /10.1.20.101:50716 lastZxid 0
> 2009-11-20 00:00:04,982 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Creating new session 0x1250f26319f0016
> 2009-11-20 00:00:05,051 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Finished init of 0x1250f26319f0016 valid:true
> 2009-11-20 00:00:05,051 WARN
> org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
> processing sessionid:0x1250f26319f0016 type:create c
> xid:0x1 zxid:0xfffffffffffffffe txntype:unknown n/a
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
> NodeExists
>         at
> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:245)
>         at
> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114)
> 2009-11-20 00:00:40,150 WARN
> org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
> processing sessionid:0x1250f26319f0016 type:create c
> xid:0x4 zxid:0xfffffffffffffffe txntype:unknown n/a
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
> NodeExists
>         at
> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:245)
>         at
> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114)
> 2009-11-20 00:00:50,428 WARN org.apache.zookeeper.server.NIOServerCnxn:
> Exception causing close of session 0x1250f26319f0016 due to
> java.io.IOExceptio
> n: Read error
> 2009-11-20 00:00:50,429 INFO org.apache.zookeeper.server.NIOServerCnxn:
> closing session:0x1250f26319f0016 NIOServerCnxn:
> java.nio.channels.SocketChann
> el[connected local=/10.1.20.101:2181 remote=/10.1.20.101:50716]
> 2009-11-20 00:01:22,002 INFO
> org.apache.zookeeper.server.SessionTrackerImpl: Expiring session
> 0x1250f26319f0016
> 2009-11-20 00:01:22,002 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Expiring session 0x1250f26319f0016
> 2009-11-20 00:01:22,002 INFO
> org.apache.zookeeper.server.PrepRequestProcessor: Processed session
> termination request for id: 0x1250f26319f0016
> 2009-11-20 03:41:04,766 WARN org.apache.zookeeper.server.NIOServerCnxn:
> Exception causing close of session 0x124bc250d700790 due to
> java.io.IOExceptio
> n: Read error
> 2009-11-20 03:41:04,864 INFO
> org.apache.zookeeper.server.SessionTrackerImpl: Expiring session
> 0x1250f26319f0000
> 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Expiring session 0x1250f26319f0000
> 2009-11-20 03:41:04,927 INFO
> org.apache.zookeeper.server.SessionTrackerImpl: Expiring session
> 0x124bc250d7007a2
> 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Expiring session 0x124bc250d7007a2
> 2009-11-20 03:41:04,927 INFO
> org.apache.zookeeper.server.SessionTrackerImpl: Expiring session
> 0x124bc250d700794
> 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Expiring session 0x124bc250d700794
>
>
>

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