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https://issues.apache.org/jira/browse/CASSSIDECAR-210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yifan Cai updated CASSSIDECAR-210:
----------------------------------
Fix Version/s: 1.0
Source Control Link:
https://github.com/apache/cassandra-sidecar/commit/0712bf603429d13f6e6dadaae8b2f238e3182cc5
Resolution: Fixed
Status: Resolved (was: Ready to Commit)
> Fix PeriodicTaskExecutor double execution due to race from reschedule
> ---------------------------------------------------------------------
>
> Key: CASSSIDECAR-210
> URL: https://issues.apache.org/jira/browse/CASSSIDECAR-210
> Project: Sidecar for Apache Cassandra
> Issue Type: Bug
> Components: Rest API
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Major
> Fix For: 1.0
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> {color:#000000}We have observed a periodic task (in this case, the schema
> reporting task) running twice within the same reporting interval. {color}
> {color:#000000}The unexpected behavior is because the schedule call as part
> of the rescheduling can race with the schedule call at the end of a periodic
> task run. As a consequence, the termination condition of a schedule is
> incorrectly removed, causing multiple schedules of the same task being
> executed.{color}
> {color:#000000}This patch fixes the bug by ensuring a single thread schedules
> the next run{color}
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