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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/04/16 02:20:20 UTC

[jira] [Updated] (CASSANDRA-5220) Repair improvements when using vnodes

     [ https://issues.apache.org/jira/browse/CASSANDRA-5220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benedict updated CASSANDRA-5220:
--------------------------------

    Labels: performance repair  (was: )

> Repair improvements when using vnodes
> -------------------------------------
>
>                 Key: CASSANDRA-5220
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5220
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.2.0 beta 1
>            Reporter: Brandon Williams
>            Assignee: Yuki Morishita
>              Labels: performance, repair
>             Fix For: 2.1 beta2
>
>
> Currently when using vnodes, repair takes much longer to complete than without them.  This appears at least in part because it's using a session per range and processing them sequentially.  This generates a lot of log spam with vnodes, and while being gentler and lighter on hard disk deployments, ssd-based deployments would often prefer that repair be as fast as possible.



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