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https://issues.apache.org/jira/browse/CASSANDRA-10323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14934121#comment-14934121
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Chris Lohfink commented on CASSANDRA-10323:
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have it recording time from when base mutation is applied to memtable until
when the CL.ONE is achieved on the async write to the MVs (I think). Added a
"pending", but its global not per table. Also tracking per table how much time
is spent on the local read and how much time it takes to acquire partition lock.
> 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: Chris Lohfink
> Labels: lhf
> Fix For: 3.0.0 rc2
>
> Attachments: trunk-10323-v2.txt, trunk-10323.txt
>
>
> 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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