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https://issues.apache.org/jira/browse/CASSANDRA-44?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12855394#action_12855394
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Hudson commented on CASSANDRA-44:
---------------------------------
Integrated in Cassandra #402 (See
[http://hudson.zones.apache.org/hudson/job/Cassandra/402/])
RingCache fixups in the wake of CASSANDRA-44
* invoke DatabaseDescriptor.loadSchemas from RingCache ctor (needed
now to populate DD's table list).
* improved error handling in DD.getReplicaPlacementStrategyClass so that
any future failures to call loadSchemas are easier to spot.
* updated TestRingCache. This was never runnable as a unit test, (it
requires a running instance), and doing static initialization is
problematic now that RingCache's ctor throws IOExceptions.
Patch by eevans
> It is difficult to modify the set of ColumnFamliies in an existing cluster
> --------------------------------------------------------------------------
>
> Key: CASSANDRA-44
> URL: https://issues.apache.org/jira/browse/CASSANDRA-44
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Eric Evans
> Assignee: Gary Dusbabek
> Fix For: 0.7
>
>
> ColumnFamilies may be added when cassandr is not running by editing the
> configuration file.
> If you need to delete or re-order CFs, you must
> 1) kill cassandra
> 2) start it again and wait for log replay to finish
> 3) kill cassandra AGAIN
> Alternatively on Cassandra 0.4.2 or later:
> 1) run nodeprobe flush and wait for it to finish
> 2) kill cassandra
> Then:
> 4) make your edits (now there is no data in the commitlog)
> 5) manually remove the sstable files (-Data.db, -Index.db, and -Filter.db)
> for the CFs you removed, and rename files for CFs you renamed
> 6) start cassandra and your edits should take effect
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