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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6466) Enable multi-thread for memstore flush
Date Fri, 27 Jul 2012 23:07:36 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424210#comment-13424210
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Jean-Daniel Cryans commented on HBASE-6466:
-------------------------------------------

bq. The above operation is region-wise. The performance boost in tps might have come from
this.

Those are just queueing requests to the compact split thread, I don't think I follow you.
                
> Enable multi-thread for memstore flush
> --------------------------------------
>
>                 Key: HBASE-6466
>                 URL: https://issues.apache.org/jira/browse/HBASE-6466
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>         Attachments: HBASE-6466.patch, HBASE-6466v2.patch
>
>
> If the KV is large or Hlog is closed with high-pressure putting, we found memstore is
often above the high water mark and block the putting.
> So should we enable multi-thread for Memstore Flush?

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