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Date: Mon, 7 Nov 2016 22:13:59 +0000 (UTC)
From: "Alwyn Davis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Comment Edited] (CASSANDRA-12649) Add BATCH metrics
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archived-at: Mon, 07 Nov 2016 22:14:01 -0000


    [ https://issues.apache.org/jira/browse/CASSANDRA-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15645629#comment-15645629 ] 

Alwyn Davis edited comment on CASSANDRA-12649 at 11/7/16 10:13 PM:
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Thanks for the awesome feedback! I'll try moving the metrics to {{BatchStatement}} and verifying the performance impact with some JMH benchmarks.


was (Author: alwyn):
Thanks for the awesome feedback! I'll try moving the metrics to `BatchStatement` and verifying the performance impact with some JMH benchmarks.

> 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, 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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