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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1900) Make removetoken force always work
Date Mon, 24 Jan 2011 23:03:44 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12986083#action_12986083
] 

Brandon Williams commented on CASSANDRA-1900:
---------------------------------------------

Right.  The problem here is that decommission and removetoken are completely different operations
(decom moves its own data off, removetoken has the replicas restore the count.)  So if a decommission
fails, you need to invoke the removetoken path, but since decommission puts the node's state
in STATE_LEAVING, you can't call removetoken currently.  This patch removes that restriction.
 If, for some reason, the streaming during removetoken fails, then finally you need to removetoken
force.

> Make removetoken force always work
> ----------------------------------
>
>                 Key: CASSANDRA-1900
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1900
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>    Affects Versions: 0.7.0 rc 2, 0.7.0 rc 3
>            Reporter: Nick Bailey
>            Assignee: Brandon Williams
>             Fix For: 0.7.1
>
>         Attachments: 1900-v2.txt, 1900.txt
>
>
> The 'removetoken force' command was intended for forcing a removal to complete when the
removal stalls for some reason. The most likely reason being a streaming failure causing the
node to wait forever for streams to complete.
> The command should be updated so that it can force a removal in any case. For example
a node that was decommissioned but killed before a LEFT status was broadcasted. This leaves
the node in a permanent 'leaving' state.

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