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Posted to commits@cassandra.apache.org by "Sergey Kandyla (Jira)" <ji...@apache.org> on 2021/02/05 15:15:00 UTC
[jira] [Comment Edited] (CASSANDRA-15977) 4.0 Quality: Read Repair
Test Audit
[ https://issues.apache.org/jira/browse/CASSANDRA-15977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279741#comment-17279741 ]
Sergey Kandyla edited comment on CASSANDRA-15977 at 2/5/21, 3:14 PM:
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Hello!
This fix in ColumnFilter leads to 20-30% additional cpu load.
Cassandra 3.11.9 and 3.11.10 shows performance degradation comparing to 3.11.8.
Loadtest was made by wrk tool querying golang application which interacts with Cassandra cluster (3 nodes, RF=3. {color:#000000}dclocal_read_repair_chance = 0){color}
!Screenshot 2021-02-05 at 18.01.10.png!
was (Author: skandyla):
Hello!
This fix in ColumnFilter leads to 20-30% additional cpu load.
!Screenshot 2021-02-05 at 18.01.10.png!
> 4.0 Quality: Read Repair Test Audit
> -----------------------------------
>
> Key: CASSANDRA-15977
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15977
> Project: Cassandra
> Issue Type: Task
> Components: Test/dtest/java, Test/unit
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Normal
> Fix For: 3.11.9, 4.0, 4.0-beta3
>
> Attachments: Screenshot 2021-02-05 at 18.01.10.png
>
> Time Spent: 13h 50m
> Remaining Estimate: 0h
>
> This is a subtask of CASSANDRA-15579 focusing on read repair.
> [This document|https://docs.google.com/document/d/1-gldHcdLSMRbDhhI8ahs_tPeAZsjurjXr38xABVjWHE/edit?usp=sharing] lists and describes the existing functional tests for read repair, so we can have a broad view of what is currently covered. We can comment on this document and add ideas for new cases/tests, so it can gradually evolve to a more or less detailed test plan.
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