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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6497) Revisit HLog sizing and roll parameters
Date Thu, 02 Aug 2012 15:58:03 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427403#comment-13427403
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Andrew Purtell commented on HBASE-6497:
---------------------------------------

> Is there a need to keep the logs small (typically 64-128 depending on the HDFS config)?

At least for the case of replication being active, then yes we do want to hold down the log
size. But that would not be the default case.

> Should we increase the maxlogs number (default is 32)?

With distributed splitting, I think we can.
                
> Revisit HLog sizing and roll parameters
> ---------------------------------------
>
>                 Key: HBASE-6497
>                 URL: https://issues.apache.org/jira/browse/HBASE-6497
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Lars George
>
> The last major update to the HLog sizing and roll features were done in HBASE-1394. I
am proposing to revisit these settings to overcome recent issues where the HLog becomes a
major bottleneck.

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