[
https://issues.apache.org/jira/browse/HBASE-14352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791304#comment-14791304
]
Lars Hofhansl commented on HBASE-14352:
---------------------------------------
That's a good point. If there's no advantage to compresses WALs ever, let's get
rid of the code.
I think [~abhishek.chouhan] found write performance neutral with much reduced
storage (20%). Only replication was significantly slower. Would certainly be
nice if we could compress between DC when doing replication (but that's a
different issue).
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
