[jira] [Commented] (CASSANDRA-12649) Add BATCH metrics

["Benjamin Lerer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15722250#comment-15722250 ] 

Benjamin Lerer commented on CASSANDRA-12649:
--------------------------------------------

@Alwyn Davis any concern with the changes I did to your patch? 

[~iamaleksey] could you have a look at the patch to check that I did not miss anything?

> Add BATCH metrics
> -----------------
>
>                 Key: CASSANDRA-12649
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12649
>             Project: Cassandra
>          Issue Type: Wish
>            Reporter: Alwyn Davis
>            Assignee: Alwyn Davis
>            Priority: Minor
>             Fix For: 3.x
>
>         Attachments: 12649-3.x-v2.patch, 12649-3.x.patch, stress-batch-metrics.tar.gz, stress-trunk.tar.gz, 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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