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https://issues.apache.org/jira/browse/CASSANDRA-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15636401#comment-15636401
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Benjamin Lerer commented on CASSANDRA-12649:
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I discussed the patch with [~iamaleksey] and we both have some concerns with
the performance impact of measuring the mutation size. Could you provide a
benchmark to assess the performance impact of that measurement?
I am also not fully convinced by the usefullness of Logged / Unlogged
Partitions per batch distribution. Could you explain in more details how it
will be usefull for you?
> 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: 12649-3.x.patch, 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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