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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2009/11/02 05:24:59 UTC

[jira] Updated: (CASSANDRA-44) It is difficult to modify the set of ColumnFamliies in an existing cluster

     [ https://issues.apache.org/jira/browse/CASSANDRA-44?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-44:
------------------------------------

    Description: 
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

  was:
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

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


> 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
>
> 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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