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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1997) zk tick time bounds maximum zk session time
Date Sat, 21 Nov 2009 01:11:39 GMT
zk tick time bounds maximum zk session time
-------------------------------------------

                 Key: HBASE-1997
                 URL: https://issues.apache.org/jira/browse/HBASE-1997
             Project: Hadoop HBase
          Issue Type: Bug
            Reporter: stack


Default session is set to 60 seconds but ticktime is 2 seconds.

http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkSessions

"One of the parameters to the ZooKeeper client library call to create a ZooKeeper session
is the session timeout in milliseconds. The client sends a requested timeout, the server responds
with the timeout that it can give the client. The current implementation requires that the
timeout be a minimum of 2 times the tickTime (as set in the server configuration) and a maximum
of 20 times the tickTime."

So, max is actually 40 seconds.

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