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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10714) SyncFuture hangs when sequence is 0
Date Mon, 10 Mar 2014 16:58:43 GMT
Jimmy Xiang created HBASE-10714:
-----------------------------------

             Summary: SyncFuture hangs when sequence is 0
                 Key: HBASE-10714
                 URL: https://issues.apache.org/jira/browse/HBASE-10714
             Project: HBase
          Issue Type: Bug
          Components: wal
            Reporter: Jimmy Xiang


In SyncFuture, NOT_DONE = 0. The initial value of the ringBuffer is -1. So ringBuffer.next()
gives 0 for the first call. If we create a SyncFuture with sequence = 0, even when we set
it's done (ie. doneSequence = 0), it is still not done since doneSequence == NOT_DONE == 0.
 Can we set NOT_DONE to -1, and the initial doneSequence to -2?



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