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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-6058) Use ZK 3.4 API 'multi' in bulk assignment
Date Tue, 15 Oct 2013 09:05:42 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nicolas Liochon resolved HBASE-6058.
------------------------------------

    Resolution: Won't Fix

> Use ZK 3.4 API 'multi' in bulk assignment
> -----------------------------------------
>
>                 Key: HBASE-6058
>                 URL: https://issues.apache.org/jira/browse/HBASE-6058
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, Zookeeper
>    Affects Versions: 0.95.2
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>            Priority: Minor
>
> We use async API today. This is already much much faster than the sync API. Still, it
makes sense to use the 'multi' function: this will decrease the network & zookeeper load
at startup/rolling restart.
> On a 500 nodes cluster, we see 3 that 3 seconds are spent on updating ZK per bulk assignment.
This should cut it in half (+ the benefits on the network/zk load).



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