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Posted to dev@hbase.apache.org by "Jimmy Xiang (JIRA)" <ji...@apache.org> on 2014/03/10 17:58:43 UTC

[jira] [Created] (HBASE-10714) SyncFuture hangs when sequence is 0

Jimmy Xiang created HBASE-10714:
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             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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