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From "Jeremy Hanna (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4392) Create a tool that will convert a commit log into a series of readable CQL statements
Date Thu, 28 Jun 2012 18:32:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13403340#comment-13403340
] 

Jeremy Hanna commented on CASSANDRA-4392:
-----------------------------------------

Since this is going to apply to several nodes, it might be nice to have a way to aggregate
the CQL statements as well and then apply them in bulk at the cluster again.

It would seem that some information is lost after it gets to the commitlog, however.  So the
consistency level that something is written at is probably not available.  The CQL statement
might do USING ALL so that it errs on the side of make it apply to everything.  Or make that
configurable.
                
> Create a tool that will convert a commit log into a series of readable CQL statements
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4392
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4392
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Jeremy Hanna
>
> To enable a case of point in time recovery not currently handled by cassandra, it would
be great to have a way to convert a commit log into a series of readable CQL statements.
> Currently one is able to do recovery up to current sstables, or with CASSANDRA-3690,
additionally apply the current commit logs in their entirety.  The one missing case is to
say that I want to recover to a point in time before I did stupid/damaging operation X.  That
needs visibility into the commit logs.
> I thought the simplest way to do this would be to have a tool that converts commit logs
into readable CQL statements so they could be selectively applied.

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