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Posted to commits@cassandra.apache.org by "Michael Semb Wever (Jira)" <ji...@apache.org> on 2020/12/21 07:59:00 UTC
[jira] [Updated] (CASSANDRA-15812) Submitting Validation requests
can block ANTI_ENTROPY stage
[ https://issues.apache.org/jira/browse/CASSANDRA-15812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Semb Wever updated CASSANDRA-15812:
-------------------------------------------
Fix Version/s: (was: 4.0-alpha)
4.0-beta1
4.0
> Submitting Validation requests can block ANTI_ENTROPY stage
> ------------------------------------------------------------
>
> Key: CASSANDRA-15812
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15812
> Project: Cassandra
> Issue Type: Bug
> Components: Consistency/Repair
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Priority: Normal
> Fix For: 4.0, 4.0-beta1
>
>
> RepairMessages are handled on Stage.ANTI_ENTROPY, which has a thread pool with core/max capacity of one, ie. we can only process one message at a time.
>
> Scheduling validation compactions may however block the stage completely, by blocking on CompactionManager's ValidationExecutor while submitting a new validation compaction, in cases where there are already more validations running than can be executed in parallel.
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