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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8638) add logging to compaction policy
Date Wed, 29 May 2013 23:50:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669894#comment-13669894
] 

stack commented on HBASE-8638:
------------------------------

+1 on adding debug to figure an issue.

What is this about:

LOG.info("Compaction failed at original callstack: " + formatStackTrace(ex));

What not just:

LOG.info("Compaction....", ex);

Your formatStackTrace doesn't seem to add anything?

Do you intend the fixes in ExploringCompactionPolicy?

Good on you Sergey.
                
> add logging to compaction policy
> --------------------------------
>
>                 Key: HBASE-8638
>                 URL: https://issues.apache.org/jira/browse/HBASE-8638
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Trivial
>         Attachments: HBASE-8638-v0.patch
>
>
> We are seeing some strange patterns with current compaction policy in some contexts (with
normal writes, no bulk load). It seems like some logging is needed to understand what is going
on, similar to old default policy

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