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Posted to user@hbase.apache.org by zhengbing li <li...@huawei.com> on 2010/06/26 05:05:32 UTC

coould anyone tell me why this zookeeper Exception happens?

hi:
when I exit my problem,fllowing message will be print:
Closing session: 0x229689222080036 
Closing ClientCnxn for session: 0x229689222080036 
Exception while closing send thread for session 0x229689222080036 : Read
error rc = -1 java.nio.DirectByteBuffer[pos=0 lim=4 cap=4] 
Disconnecting ClientCnxn for session: 0x229689222080036 
Session: 0x229689222080036 closed 
EventThread shut down 
and this is corresponding zookeper LOG

2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
Connected to /10.70.110.58:1661 lastZxid 0

2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
Creating new session 0x229689222080036

2010-06-26 10:27:11,259 INFO org.apache.zookeeper.server.NIOServerCnxn:
Finished init of 0x229689222080036 valid:true

2010-06-26 10:27:25,797 INFO
org.apache.zookeeper.server.PrepRequestProcessor: Processed session
termination request for id: 0x229689222080036

2010-06-26 10:27:25,849 INFO org.apache.zookeeper.server.NIOServerCnxn:
closing session:0x229689222080036 NIOServerCnxn:
java.nio.channels.SocketChannel[connected local=/10.137.97.73:2222
remote=/10.70.110.58:1661]
 



 

reply: coould anyone tell me why this zookeeper Exception happens?

Posted by zhengbing li <li...@huawei.com>.
 hi Partick
   thank you for your reply, can I be avoid of this Exception through
configration?




sender: Patrick Hunt [mailto:phunt@apache.org] 
sendt time: 2010 6-28  8:10
receiver: user@hbase.apache.org
 cc: zhengbing li
topic: Re: coould anyone tell me why this zookeeper Exception happens?

When a zk client closes its session it sends a close session request to the
server. In some cases the client may not finalize it's side of the close
before the server closes the session - including closing the socket. If this
happens the client may output this message (read rc of
-1 means "end of stream"). Nothing to worry about in this context.

Patrick

On 06/25/2010 08:05 PM, zhengbing li wrote:
> hi:
> when I exit my problem,fllowing message will be print:
> Closing session: 0x229689222080036
> Closing ClientCnxn for session: 0x229689222080036 Exception while 
> closing send thread for session 0x229689222080036 : Read error rc = -1 
> java.nio.DirectByteBuffer[pos=0 lim=4 cap=4] Disconnecting ClientCnxn 
> for session: 0x229689222080036
> Session: 0x229689222080036 closed
> EventThread shut down
> and this is corresponding zookeper LOG
>
> 2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Connected to /10.70.110.58:1661 lastZxid 0
>
> 2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Creating new session 0x229689222080036
>
> 2010-06-26 10:27:11,259 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Finished init of 0x229689222080036 valid:true
>
> 2010-06-26 10:27:25,797 INFO
> org.apache.zookeeper.server.PrepRequestProcessor: Processed session 
> termination request for id: 0x229689222080036
>
> 2010-06-26 10:27:25,849 INFO org.apache.zookeeper.server.NIOServerCnxn:
> closing session:0x229689222080036 NIOServerCnxn:
> java.nio.channels.SocketChannel[connected local=/10.137.97.73:2222 
> remote=/10.70.110.58:1661]
>
>
>
>
>
>


Re: coould anyone tell me why this zookeeper Exception happens?

Posted by Patrick Hunt <ph...@apache.org>.
When a zk client closes its session it sends a close session request to 
the server. In some cases the client may not finalize it's side of the 
close before the server closes the session - including closing the 
socket. If this happens the client may output this message (read rc of 
-1 means "end of stream"). Nothing to worry about in this context.

Patrick

On 06/25/2010 08:05 PM, zhengbing li wrote:
> hi:
> when I exit my problem,fllowing message will be print:
> Closing session: 0x229689222080036
> Closing ClientCnxn for session: 0x229689222080036
> Exception while closing send thread for session 0x229689222080036 : Read
> error rc = -1 java.nio.DirectByteBuffer[pos=0 lim=4 cap=4]
> Disconnecting ClientCnxn for session: 0x229689222080036
> Session: 0x229689222080036 closed
> EventThread shut down
> and this is corresponding zookeper LOG
>
> 2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Connected to /10.70.110.58:1661 lastZxid 0
>
> 2010-06-26 10:27:11,229 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Creating new session 0x229689222080036
>
> 2010-06-26 10:27:11,259 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Finished init of 0x229689222080036 valid:true
>
> 2010-06-26 10:27:25,797 INFO
> org.apache.zookeeper.server.PrepRequestProcessor: Processed session
> termination request for id: 0x229689222080036
>
> 2010-06-26 10:27:25,849 INFO org.apache.zookeeper.server.NIOServerCnxn:
> closing session:0x229689222080036 NIOServerCnxn:
> java.nio.channels.SocketChannel[connected local=/10.137.97.73:2222
> remote=/10.70.110.58:1661]
>
>
>
>
>
>