[jboss-jira] [JBoss JIRA] Created: (JGRP-509) backoff-restart flush algorithm has a bug

Fri May 11 14:32:55 EDT 2007

backoff-restart flush algorithm has a bug
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                 Key: JGRP-509
                 URL: http://jira.jboss.com/jira/browse/JGRP-509
             Project: JGroups
          Issue Type: Bug
            Reporter: Michael Newcomb
         Assigned To: Bela Ban
             Fix For: 2.5

Consider FLUSH.startFlush():

If the timeout expires on the flush_promise, the backoff-sleep algorithm kicks in. This sleeps for a random time and then tries calls startFlush again. The problem is that between the time that the flush_promise times out and startFlush is re-issued, the flush could have completed successfully, but it would go unnoticed, because after Util.sleep completes, the flush_promise is reset.

Recommend using the flush_promise.getResultWithTimeout(timeout) alone and not Util.sleep(). The group is just as operational during flush_promise.getResultWithTimeout(timeout) as in Util.sleep().

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