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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-987) We need a way to recover from a crash during migration if the crash happens before 'definitions' are flushed.
Date Fri, 21 May 2010 20:28:17 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12870144#action_12870144
] 

Stu Hood commented on CASSANDRA-987:
------------------------------------

+1 Thanks Gary.

> We need a way to recover from a crash during migration if the crash happens before 'definitions'
are flushed.
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-987
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-987
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 0.7
>            Reporter: Gary Dusbabek
>            Assignee: Gary Dusbabek
>             Fix For: 0.7
>
>         Attachments: 0001-recover-when-a-migration-crashes-before-system-table.patch
>
>
> Because what happens is this:  the schema exists only in the commit log and so will not
be loaded during initialization.  The schema sstables will then be written during CL recovery,
but the changes never applied.  This could all be resolved with another restart, but I'd like
to find a better way.  This shouldn't be too hard.

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