[jira] [Created] (REEF-1537) LogicalTimer can cause a race condition in RuntimeClock

["Sergiy Matusevych (JIRA)" <ji...@apache.org>]

Sergiy Matusevych created REEF-1537:
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             Summary: LogicalTimer can cause a race condition in RuntimeClock
                 Key: REEF-1537
                 URL: https://issues.apache.org/jira/browse/REEF-1537
             Project: REEF
          Issue Type: Bug
          Components: REEF-Common
            Reporter: Sergiy Matusevych
            Assignee: Sergiy Matusevych
            Priority: Minor


{{RuntimeClock}} has a concept of injectable timer, and in many unit tests, we use {{LogicalTimer}} to speed up the operations. Unfortunately, {{RuntimeClock}} still depends on the system timer internally: it uses {{Object.wait(time)}} calls in the event loop. That can cause race conditions when using {{LogicalTimer}}, e.g. in unit test {{ClockTest.testAlarmOrder()}}

The solution would be to move the {{.wait()}} functionality into the logical timer.



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