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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-1740) Nodetool commands to query and stop compaction, repair, cleanup and scrub
Date Mon, 11 Apr 2011 12:21:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018315#comment-13018315
] 

Sylvain Lebresne commented on CASSANDRA-1740:
---------------------------------------------

As for handling the multi-threaded compactions, the hashcode would more or less work but since
it's not totally safe I would prefer assigning a name to each compaction which could be:
  * a uuid assigned to each compaction when created
  * a simple (atomically) increasing number
  * a simple (atomically) increasing number for each type of compaction, the name being something
like major-42 or minor-3012. Nice thing is it tells you how many minor, major, validata, ...
compaction you have run already.

> Nodetool commands to query and stop compaction, repair, cleanup and scrub
> -------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1740
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1740
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Chip Salzenberg
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>             Fix For: 0.7.5
>
>         Attachments: CASSANDRA-1740.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> The only way to stop compaction, repair, cleanup, or scrub in progress is to stop and
restart the entire Cassandra server.  Please provide nodetool commands to query whether such
things are running, and stop them if they are.

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