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From "Abhishek Singh Chouhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14352) Replication is terribly slow with WAL compression
Date Wed, 02 Sep 2015 07:01:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14726868#comment-14726868
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Abhishek Singh Chouhan commented on HBASE-14352:
------------------------------------------------

[~ram_krish] I'm not working on this right now. You can take this up. Let me know if i can
help along the way :)

> Replication is terribly slow with WAL compression
> -------------------------------------------------
>
>                 Key: HBASE-14352
>                 URL: https://issues.apache.org/jira/browse/HBASE-14352
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.13
>            Reporter: Abhishek Singh Chouhan
>         Attachments: age_of_last_shipped.png, size_of_log_queue.png
>
>
> For the same load, replication with WAL compression enabled is almost 6x slower than
with compression turned off. Age of last shipped operation is also correspondingly much higher
when compression is turned on. 
> By observing Size of log queue we can see that it is taking too much time for the queue
to clear up.
> Attaching corresponding graphs.



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