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https://issues.apache.org/jira/browse/HDDS-14855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sammi Chen updated HDDS-14855:
------------------------------
    Summary: Add synchronization in ThrottledAsyncChecker#schedule  (was: Add 
synchronization in ThrottledAsyncChecker#schedule to avoid schedule multiple 
times for same target)

> Add synchronization in ThrottledAsyncChecker#schedule
> -----------------------------------------------------
>
>                 Key: HDDS-14855
>                 URL: https://issues.apache.org/jira/browse/HDDS-14855
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Sammi Chen
>            Assignee: Sammi Chen
>            Priority: Major
>
> ThrottledAsyncChecker has checksInProgress and completedChecks to track the 
> check task in running, and the lastest check task result, while both have 
> thread unsafe data type. 
> Synchronization is added when element is removed from  checksInProgress and 
> completedChecks, but there is no synchronization when element in added during 
> schedule() call. So add synchronization in ThrottledAsyncChecker#schedule to 
> avoid schedule multiple times for same target.



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