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From "Billy Pearson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1513) Compactions to slow
Date Sat, 13 Jun 2009 23:36:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12719206#action_12719206
] 

Billy Pearson commented on HBASE-1513:
--------------------------------------

second patch will not apply to trunk

{code}
patching file src/java/org/apache/hadoop/hbase/regionserver/Store.java
Hunk #1 FAILED at 829.
1 out of 1 hunk FAILED -- saving rejects to file src/java/org/apache/hadoop/hbase/regionserver/Store.java.rej
{code}

My compaction was with compression so might be much faster without.


> Compactions to slow
> -------------------
>
>                 Key: HBASE-1513
>                 URL: https://issues.apache.org/jira/browse/HBASE-1513
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.20.0
>            Reporter: Billy Pearson
>            Assignee: ryan rawson
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: HBASE-1513-v2.patch, HBASE-1513.patch
>
>
>  know there was some changes to compaction a few days back I just got back 
> to where I could run imports with the new client api
> and noticing that compactions are vary slow I meand 100x+ slower then they 
> used to be I thought one of the servers compaction thread had died
> but after retesting and ruleing that out. 
> I tested with and without compression and with and with out 
> blockcache and all are running about the same
> I got one small compaction to complete it took 1977 secs to compact 48.56MB
> thats about 25kb sec

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