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Posted to dev@uima.apache.org by "Jerry Cwiklik (JIRA)" <de...@uima.apache.org> on 2016/03/17 15:49:33 UTC

[jira] [Created] (UIMA-4862) UIMA-DUCC: cgcreate fails sometimes when run concurrently

Jerry Cwiklik created UIMA-4862:
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             Summary: 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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