[infinispan-issues] [JBoss JIRA] (ISPN-2602) Busy wait in BaseStateTransferManagerImpl#waitForStateTransferToStart

[Dennis Reed (JIRA)]

Dennis Reed created ISPN-2602:
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             Summary: Busy wait in BaseStateTransferManagerImpl#waitForStateTransferToStart
                 Key: ISPN-2602
                 URL: https://issues.jboss.org/browse/ISPN-2602
             Project: Infinispan
          Issue Type: Bug
          Components: State transfer
    Affects Versions: 5.1.4.FINAL
            Reporter: Dennis Reed
            Assignee: Mircea Markus


BaseStateTransferManagerImpl#waitForStateTransferToStart does a busy wait, sleeping for 10ms in between checking the condition, instead of synchronizing using condition variables (or the equivalent).

This can cause excessive CPU load if a lot of threads are waiting
(we have seen 300 threads waiting in this loop at once).


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