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Posted to commits@cassandra.apache.org by "Josh McKenzie (Jira)" <ji...@apache.org> on 2020/10/02 02:32:00 UTC
[jira] [Commented] (CASSANDRA-15921) 4.0 quality testing:
Materialized View
[ https://issues.apache.org/jira/browse/CASSANDRA-15921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17205941#comment-17205941 ]
Josh McKenzie commented on CASSANDRA-15921:
-------------------------------------------
[~jasonstack] - any movement on this? Do we have a backlog of things we've identified we want to work on or suspect needs TLC we can enumerate here?
> 4.0 quality testing: Materialized View
> --------------------------------------
>
> Key: CASSANDRA-15921
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15921
> Project: Cassandra
> Issue Type: Task
> Components: Feature/Materialized Views
> Reporter: Zhao Yang
> Assignee: Zhao Yang
> Priority: Normal
> Fix For: 4.x
>
> Attachments: C40_MV.png
>
>
> The main purpose of this ticket to get a better understanding about 4.0 MV status as a guideline for future improvements. I don't think it should block 4.0 release since it's already marked as experimental.
> Main areas to test:
> * Write perf: We expect to see [10% write throughput drop per MV added|https://www.datastax.com/blog/2016/05/materialized-view-performance-cassandra-3x].
> ** Attached C40_MV.png is alpha-4, 5-node, rf3 MV write tests: with 1 mv, throughput dropped 50%
> * Read perf: identical to normal table
> * Bootstrap/Decommision: no write-path required since CASSANDRA-13065
> * Repair: write path required
> * Chaos monkey: take down coordinator/base-replica/view-replica during read/write/token-movement and verify data consistency (may need a tool)
> * Hint Replay: able to throttle if table has MV - CASSANDRA-13810
> * Schema race: create/drop - CASSANDRA-15845/CASSANDRA-15918
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