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From "Erik Holstad (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-685) [Performance] Alternative to synchronized SortedMap
Date Wed, 17 Jun 2009 15:50:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12720725#action_12720725
] 

Erik Holstad commented on HBASE-685:
------------------------------------

I would say that we have come a long way with this issue, even thought we haven't found a
faster alternative to the synchronized sortedmap, but we have cut down on the use of it which

contributes to the overall speed improvement.

> [Performance] Alternative to synchronized SortedMap
> ---------------------------------------------------
>
>                 Key: HBASE-685
>                 URL: https://issues.apache.org/jira/browse/HBASE-685
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: stack
>
> Over in HBASE-684, LN suggests that we should find alternative to synchronized sortedmap;
its used all over the place in hbase so a faster alternative should improve thoughput.  That
synchronized sortedmap is less than perfect has been known from earliest days (see cafarella
comment at head of HStore#internalGet in 0.1 branch.

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