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https://issues.apache.org/jira/browse/UIMA-4862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik closed UIMA-4862.
-------------------------------
Resolution: Fixed
Added retry to deal with cgcreate failures. When two threads rapidly create
cgroups one succeeds the other fails due to InterruptException. After a short
pause retry succeeds
> UIMA-DUCC: cgcreate fails sometimes when run concurrently
> ---------------------------------------------------------
>
> Key: UIMA-4862
> URL: https://issues.apache.org/jira/browse/UIMA-4862
> Project: UIMA
> Issue Type: Bug
> Components: DUCC
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
> Fix For: 2.1.0-Ducc
>
>
> For some strange reason cgcreate fails to create cgroup when running
> concurrently. What is strange is that CGroupsManager.createContainer() uses
> synchronized code using CGroupManager.class which provides class level
> locking. So there should not be any contention at all. Yet if run
> concurrently the cgcreate consistently fails unless there is sufficient wait
> time added between calls.
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