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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3526) Tables with TTL should be able to prune memstore w/o flushing
Date Wed, 23 Mar 2011 00:04:06 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009917#comment-13009917
] 

Jean-Daniel Cryans commented on HBASE-3526:
-------------------------------------------

Could we put this only in 0.92? It seems to go beyond a simple optimization.

> Tables with TTL should be able to prune memstore w/o flushing
> -------------------------------------------------------------
>
>                 Key: HBASE-3526
>                 URL: https://issues.apache.org/jira/browse/HBASE-3526
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.90.0
>            Reporter: ryan rawson
>             Fix For: 0.90.2
>
>
> If you have a table with TTL, the memstore will grow until it hits flush size, at which
point the flush code will prune the KVs going to hfile. If you have a small TTL, it may not
be necessary to flush, since pruning data in memory would ensure that we never grow too big.

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