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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