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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3149) Make flush decisions per column family
Date Thu, 23 Feb 2012 06:31:49 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13214372#comment-13214372
] 

stack commented on HBASE-3149:
------------------------------

@Nicolas I think I follow.  I opened HBASE-5461.  Let me try it.

bq. Why is this silly? 

Because I was seeing a plethora of small files a problem but given your explaination above,
I think I grok that its not many small files thats the prob; its that w/ the way high min
size, our selection was to inclusionary and so we end up doing loads of rewriting.
                
> Make flush decisions per column family
> --------------------------------------
>
>                 Key: HBASE-3149
>                 URL: https://issues.apache.org/jira/browse/HBASE-3149
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Karthik Ranganathan
>            Assignee: Nicolas Spiegelberg
>            Priority: Critical
>             Fix For: 0.92.1
>
>
> Today, the flush decision is made using the aggregate size of all column families. When
large and small column families co-exist, this causes many small flushes of the smaller CF.
We need to make per-CF flush decisions.

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