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From "Joel Knighton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10323) Add more MaterializedView metrics
Date Tue, 15 Sep 2015 14:43:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14745548#comment-14745548
] 

Joel Knighton commented on CASSANDRA-10323:
-------------------------------------------

I'd be interested to see counters for batchlog entries created/removed by a coordinator. Effectively,
how often does batchlog replay kick in as a mechanism to work toward quorum writes?

> Add more MaterializedView metrics
> ---------------------------------
>
>                 Key: CASSANDRA-10323
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10323
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>             Fix For: 3.0.0 rc1
>
>
> We need to add more metrics to help understand where time is spent in materialized view
writes. We currently track the ratio of async base -> view mutations that fail.
> We should also add
>   * The amount of time spent waiting for the partition lock (contention)
>   * The amount of time spent reading data 
> Any others? 
> [~carlyeks] [~jkni] 



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