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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-10714) SyncFuture hangs when sequence is 0
Date Mon, 10 Mar 2014 17:28:46 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jimmy Xiang reassigned HBASE-10714:
-----------------------------------

    Assignee: Jimmy Xiang

> 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
>            Assignee: 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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