[jira] Commented: (CASSANDRA-1548) renaming a keyspace, then trying to use original name again makes errorations

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-1548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915745#action_12915745 ] 

Jonathan Ellis commented on CASSANDRA-1548:
-------------------------------------------

+1

> renaming a keyspace, then trying to use original name again makes errorations
> -----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1548
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1548
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7 beta 2
>         Environment: encountered on Debian squeeze, with cassandra from HEAD (r1001931).  effects can be seen with both Telephus and Pycassa as clients; probably any.
>            Reporter: paul cannon
>            Assignee: Gary Dusbabek
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: test_case_1548.py, v1-0001-ensure-that-a-table-unloads-CFS-instances-when-they-ar.txt
>
>
> My test case does the following:
> * Create a keyspace with at least one CF in it.
> * Rename that keyspace
> * Create a new keyspace with the same original name, containing a CF with the same name as earlier.
> The second keyspace creation receives an error (although the keyspace does get created):
> {{javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=keyspacename,columnfamily=cfname}}
> After that point, trying to do almost anything with the new keyspace will generate the same error- even trying to drop it. This persists until cassandra itself is restarted.
> One supposes that some JMX thing is lacking reregistration upon keyspace rename.

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