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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12649) Add BATCH metrics
Date Tue, 18 Oct 2016 15:44:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15585794#comment-15585794
] 

Edward Capriolo commented on CASSANDRA-12649:
---------------------------------------------

+1 (non binding) users with unpredictable batch sizes tend to also have gc problems and this
would aid in insight.

> Add BATCH metrics
> -----------------
>
>                 Key: CASSANDRA-12649
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12649
>             Project: Cassandra
>          Issue Type: Wish
>            Reporter: Alwyn Davis
>            Priority: Minor
>             Fix For: 3.x
>
>         Attachments: trunk-12649.txt
>
>
> To identify causes of load on a cluster, it would be useful to have some additional metrics:
> * *Mutation size distribution:* I believe this would be relevant when tracking the performance
of unlogged batches.
> * *Logged / Unlogged Partitions per batch distribution:* This would also give a count
of batch types processed. Multiple distinct tables in batch would just be considered as separate
partitions.



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