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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-11398) RetryUpToMaximumTimeWithFixedSleep needs to behave more accurately
Date Thu, 11 Dec 2014 22:07:14 GMT
Li Lu created HADOOP-11398:
------------------------------

             Summary: RetryUpToMaximumTimeWithFixedSleep needs to behave more accurately
                 Key: HADOOP-11398
                 URL: https://issues.apache.org/jira/browse/HADOOP-11398
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Li Lu
            Assignee: Li Lu


RetryUpToMaximumTimeWithFixedSleep now inherits RetryUpToMaximumCountWithFixedSleep and just
acts as a wrapper to decide maxRetries. The current implementation uses (maxTime / sleepTime)
as the number of maxRetries. This is fine if the actual for each retry is significantly less
than the sleep time, but it becomes less accurate if each retry takes comparable amount of
time as the sleep time. The problem gets worse when there are underlying retries. 

We may want to use timers inside RetryUpToMaximumTimeWithFixedSleep to perform accurate timing.




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