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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-953) Enable BLOCKCACHE by default [WAS -> Reevaluate HBASE-288 block caching work....?]
Date Mon, 27 Oct 2008 18:00:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642979#action_12642979
] 

stack commented on HBASE-953:
-----------------------------

Tried with jdk1.7.0b38 (as opposed to the b31 used above) and it held up.  Lots of full GC's
but weathered the PE tests w/o OOME.  J-D gave my patch a review and said fine except for
some line-lengths which I've fixed.

> Enable BLOCKCACHE by default [WAS -> Reevaluate HBASE-288 block caching work....?]
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-953
>                 URL: https://issues.apache.org/jira/browse/HBASE-953
>             Project: Hadoop HBase
>          Issue Type: Task
>            Reporter: stack
>            Priority: Critical
>             Fix For: 0.19.0
>
>         Attachments: blockcache.patch
>
>
> Go back and take another look at the Tom White work.  We've gotten boost in writing and
scanning because of J-D work.  HBASE-288 looks like it boosts sequential reads and perhaps
random read a little.  Take another look.

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