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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2013/09/19 01:02:52 UTC

[jira] [Commented] (CASSANDRA-6057) JMX Metric for number of tombstones per read

    [ https://issues.apache.org/jira/browse/CASSANDRA-6057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13771366#comment-13771366 ] 

Jonathan Ellis commented on CASSANDRA-6057:
-------------------------------------------

I'd like a histogram for both live cells sliced and tombstoned.  (I.e., the values we trace already.)
                
> JMX Metric for number of tombstones per read
> --------------------------------------------
>
>                 Key: CASSANDRA-6057
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6057
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: sankalp kohli
>            Assignee: Lyuben Todorov
>            Priority: Minor
>              Labels: JMX
>
> It will also be good to emit JMX about how many tombstone we are going over. We can emit the percentage of tombstones over the columns returned. 
> We should do it on every range read I think.
> This can also be added to histogram.

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