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From "Nick Bailey (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4063) Expose nodetool cfhistograms for secondary index CFs
Date Tue, 20 Mar 2012 02:33:37 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13233132#comment-13233132
] 

Nick Bailey commented on CASSANDRA-4063:
----------------------------------------

+1
                
> Expose nodetool cfhistograms for secondary index CFs
> ----------------------------------------------------
>
>                 Key: CASSANDRA-4063
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4063
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Tyler Hobbs
>            Assignee: Brandon Williams
>            Priority: Minor
>              Labels: jmx
>         Attachments: 4063.txt
>
>
> With the ObjectName that NodeProbe uses, the JMX query can only match mbeans with type
"ColumnFamilies".  Secondary index CFs have a type of "IndexColumnFamilies", so the query
won't match them.
> The [ObjectName documentation|http://docs.oracle.com/javase/6/docs/api/javax/management/ObjectName.html]
indicates that you can use wildcards, which would be the perfect solution if it actually worked.
 I'm not sure if it's some quoted vs non-quoted pattern issue, or if it's particular to the
{{newMBeanProxy()}} method, but I could not get wildcards to match the secondary index CFs.
 Explicitly setting the "type" field to "IndexColumnFamilies" did work.

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