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Chris Lohfink commented on CASSANDRA-10323: ------------------------------------------- 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] -- This message was sent by Atlassian JIRA (v6.3.4#6332)