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Posted to dev@zookeeper.apache.org by "Henry Robinson (JIRA)" <ji...@apache.org> on 2010/03/09 06:19:27 UTC
[jira] Updated: (ZOOKEEPER-601) allow configuration of session
timeout min/max bounds
[ https://issues.apache.org/jira/browse/ZOOKEEPER-601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Henry Robinson updated ZOOKEEPER-601:
-------------------------------------
Hadoop Flags: [Reviewed]
> allow configuration of session timeout min/max bounds
> -----------------------------------------------------
>
> Key: ZOOKEEPER-601
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-601
> Project: Zookeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.2.1
> Reporter: Patrick Hunt
> Assignee: Patrick Hunt
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-601.patch
>
>
> ZK servers currently enforce a min/max boundary on client session timeout relative to the ticktime setting, detailed here:
> http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkSessions
> In general there are good reasons for this however in some cases, in particular with HBase region servers, we have seen a need to allow this bound to be set differently (higher). The Sun jvm can GC pause for very long times (in some cases we've seen 4 minutes even with the "realtime" gc.
> It would be good to allow this bound to be set via configuration parameters.
> Note: 4letterword and JMX integration would be needed.
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