Hi Ted,
 The session timeout can be changed by the server depending on min/max
bounds set on the servers. Are you servers configured to have a max
timeout of 60 seconds? usually the default is 20 * tickTime. Looks
like your ticktime is 3 seconds?

thanks
mahadev



On Thu, Mar 24, 2011 at 3:20 PM, Ted Yu <yuzhih...@gmail.com> wrote:
> Hi,
> hbase 0.90.1 uses zookeeper 3.3.2
> I specified:
> <property>
> <name>zookeeper.session.timeout</name>
> <value>490000</value>
> </property>
>
> In zookeeper log I see:
> 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Client attempting to establish new session at /10.202.50.111:50325
> 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Established session 0x12ebb99d686a012 with negotiated timeout 60000 for
> client /10.202.50.112:62386
> 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Client attempting to establish new session at /10.202.50.112:62387
> 2011-03-24 19:58:09,499 INFO
> org.apache.zookeeper.server.PrepRequestProcessor: Got user-level
> KeeperException when processing sessionid:0x12ebb99d686a012 type:create
> cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error
> Path:/hbase Error:KeeperErrorCode = NodeExists for /hbase
> 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Established session 0x12ebb99d686a013 with negotiated timeout 60000 for
> client /10.202.50.111:50324
>
> Can someone tell me how the negotiated timeout of 60000 was computed ?
>
> Thanks
>

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