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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2015/05/12 21:43:00 UTC
[jira] [Reopened] (CASSANDRA-9364) Add a warning when a high
setting for rpc_max_threads is specified for HSHA
[ https://issues.apache.org/jira/browse/CASSANDRA-9364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams reopened CASSANDRA-9364:
-----------------------------------------
> Add a warning when a high setting for rpc_max_threads is specified for HSHA
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-9364
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9364
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Fix For: 2.0.15, 2.1.6
>
> Attachments: 9364.txt
>
>
> In CASSANDRA-7594 we allowed configuring this. The problem is this was ignored for HSHA previously, so some people go through this scenario:
> 1. start with sync and 4000 threads
> 2. switch to HSHA, pre-7594
> 3. upgrade to a version after 7594, without changing this setting
> 4. experience awful performance due to insane thread contention
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