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Posted to dev@hive.apache.org by "Na Yang (JIRA)" <ji...@apache.org> on 2014/12/22 07:21:13 UTC
[jira] [Updated] (HIVE-9119) ZooKeeperHiveLockManager does not use
zookeeper in the proper way
[ https://issues.apache.org/jira/browse/HIVE-9119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Na Yang updated HIVE-9119:
--------------------------
Attachment: HIVE-9119.1.patch
> ZooKeeperHiveLockManager does not use zookeeper in the proper way
> -----------------------------------------------------------------
>
> Key: HIVE-9119
> URL: https://issues.apache.org/jira/browse/HIVE-9119
> Project: Hive
> Issue Type: Improvement
> Components: Locking
> Affects Versions: 0.13.0, 0.14.0, 0.13.1
> Reporter: Na Yang
> Assignee: Na Yang
> Attachments: HIVE-9119.1.patch
>
>
> ZooKeeperHiveLockManager does not use zookeeper in the proper way.
> Currently a new zookeeper client instance is created for each getlock/releaselock query which sometimes causes the number of open connections between
> HiveServer2 and ZooKeeper exceed the max connection number that zookeeper server allows.
> To use zookeeper as a distributed lock, there is no need to create a new zookeeper instance for every getlock try. A single zookeeper instance could be reused and shared by ZooKeeperHiveLockManagers.
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