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From "Kurt Greaves (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13885) Allow to run full repairs in 3.0 without additional cost of anti-compaction
Date Tue, 17 Oct 2017 02:33:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206922#comment-16206922
] 

Kurt Greaves commented on CASSANDRA-13885:
------------------------------------------

I don't understand why providing a flag to skip anti-compaction for full repairs is such a
big deal? 
For anyone using vnodes and full repairs this is going to make it much more difficult to repair
at the same rate as previous, as they'll only be able to run one repair per table at a time.


> Allow to run full repairs in 3.0 without additional cost of anti-compaction
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13885
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13885
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Thomas Steinmaurer
>
> This ticket is basically the result of the discussion in Cassandra user list: https://www.mail-archive.com/user@cassandra.apache.org/msg53562.html
> I was asked to open a ticket by Paulo Motta to think about back-porting running full
repairs without the additional cost of anti-compaction.
> Basically there is no way in 3.0 to run full repairs from several nodes concurrently
without troubles caused by (overlapping?) anti-compactions. Coming from 2.1 this is a major
change from an operational POV, basically breaking any e.g. cron job based solution kicking
off -pr based repairs on several nodes concurrently.



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