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https://issues.apache.org/jira/browse/HBASE-24632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17229682#comment-17229682
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Michael Stack commented on HBASE-24632:
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{quote}[~stack] [~anoop.hbase] The zk based log splitting is only a internal 
implenation. Can we purge them out in master branch and no need wait to 4.0.0?
{quote}
It is on by default in 2.4.0. I was thinking it should stay in place for a 
while in case we find a problem in procedure-based log splitting. Perhaps we 
figure out if procedure-based log splitting is stable in 2.4 + 2.5....  So, 
purging from trunk/branch-3 would be ok?

> Enable procedure-based log splitting as default in hbase3
> ---------------------------------------------------------
>
>                 Key: HBASE-24632
>                 URL: https://issues.apache.org/jira/browse/HBASE-24632
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>            Reporter: Michael Stack
>            Assignee: Michael Stack
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> Means changing this value in HConstants to false:
>    public static final boolean DEFAULT_HBASE_SPLIT_COORDINATED_BY_ZK = true;
> Should probably also deprecate the current zk distributed split too so we can 
> clear out those classes to.



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