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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2009/11/21 02:11:39 UTC
[jira] Created: (HBASE-1997) zk tick time bounds maximum zk session
time
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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[jira] Updated: (HBASE-1997) zk tick time bounds maximum zk session
time
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-1997:
-------------------------
Attachment: 1997-v2.patch
Here is v2. It instead leaves the timeout at 60seconds and instead changes tick time from 2 seconds to 3 seconds. Improves ticktime description too.
> 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
> Fix For: 0.20.3
>
> Attachments: 1997-v2.patch, 1997.patch
>
>
> 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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[jira] Resolved: (HBASE-1997) zk tick time bounds maximum zk
session time
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-1997.
--------------------------
Resolution: Fixed
Fix Version/s: 0.20.3
Assignee: stack
Committed branch and trunk.
> 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
> Assignee: stack
> Fix For: 0.20.3
>
> Attachments: 1997-v2.patch, 1997.patch
>
>
> 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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You can reply to this email to add a comment to the issue online.
[jira] Updated: (HBASE-1997) zk tick time bounds maximum zk session
time
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-1997:
-------------------------
Attachment: 1997.patch
Change session timeout to 40 seconds. Fixed the explaination.
> 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
> Attachments: 1997.patch
>
>
> 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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You can reply to this email to add a comment to the issue online.