Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Message-ID: <14470041.74351288077559591.JavaMail.jira@thor>
Date: Tue, 26 Oct 2010 03:19:19 -0400 (EDT)
From: "stack (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Subject: [jira] Commented: (HBASE-2462) Review compaction heuristic and move
 compaction code out so standalone and independently testable
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HBASE-2462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924870#action_12924870 ] 

stack commented on HBASE-2462:
------------------------------

@Nicolas

On 1., above, sorry if I'm being dense, but I don't get the relation between hlog block size and hfile size.

3. sounds great.


> Review compaction heuristic and move compaction code out so standalone and independently testable
> -------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-2462
>                 URL: https://issues.apache.org/jira/browse/HBASE-2462
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Assignee: Jonathan Gray
>            Priority: Critical
>
> Anything that improves our i/o profile makes hbase run smoother.  Over in HBASE-2457, good work has been done already describing the tension between minimizing compactions versus minimizing count of store files.  This issue is about following on from what has been done in 2457 but also, breaking the hard-to-read compaction code out of Store.java out to a standalone class that can be the easier tested (and easily analyzed for its performance characteristics).
> If possible, in the refactor, we'd allow specification of alternate merge sort implementations. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.