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From "Liu Shaohui (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12739) Avoid too large identifier of ZooKeeperWatcher
Date Mon, 22 Dec 2014 12:01:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Liu Shaohui updated HBASE-12739:
--------------------------------
    Attachment: HBASE-12739-trunk-v1.diff

Simple patch to avoid append operation

> Avoid too large identifier of ZooKeeperWatcher
> ----------------------------------------------
>
>                 Key: HBASE-12739
>                 URL: https://issues.apache.org/jira/browse/HBASE-12739
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>            Priority: Minor
>         Attachments: HBASE-12739-trunk-v1.diff
>
>
> For each SyncConnected event,  the ZooKeeperWatcher will append the session id to its
identity.
> During the failover of zk, the zookeeper client can connect to the zk server, but the
the zk server can not serve the request, so the client will try continually, which will produce
many SyncConnected events and a very large identifier of ZooKeeperWatcher in hbase log.
> {code}
> 2014-12-22,12:38:56,296 WARN org.apache.hadoop.hbase.zookeeper.ZKUtil: master:16500-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-0x349cbb4e4a7f0ba-...
> {code}
> A simple patch to fix this problem.



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