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https://issues.apache.org/jira/browse/HBASE-20107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zephyr Guo updated HBASE-20107:
-------------------------------
    Description: 
RS might get stuck because of  HBASE-14317. I met same problem in my hbase, and 
HBASE-14317 can solve this problmen very well.

But I don't get stuck when I run 
_TestWalLockup.testLockupWhenSyncInMiddleOfZigZagSetup_.
 We'll never see stuck in this test case, because 
FailedSyncBeforeLogCloseException will break 
_zigzagLatch.waitSafePoint(SyncFuture)_. Finally, 
_zigzagLatch.releaseSafePoint()_ will be call, and _attainSafePoint(long)_ get 
out stuck.

 Here, we add a new test case to simulate stuck RS correctly.

  was:
RS might get stuck because of  HBASE-14317. I met same problem in my hbase, and 
HBASE-14317 can solve this problmen very well.

But I don't get stuck when I run 
`TestWalLockup.testLockupWhenSyncInMiddleOfZigZagSetup`.
We'll never see stuck in this test case, because 
`FailedSyncBeforeLogCloseException` will break 
`zigzagLatch.waitSafePoint(SyncFuture)`. Finally, 
`zigzagLatch.releaseSafePoint()` will be call, and `attainSafePoint` get out 
stuck.

 Here, we add a new test case to simulate stuck RS correctly.


> Add a test case for HBASE-14317
> -------------------------------
>
>                 Key: HBASE-20107
>                 URL: https://issues.apache.org/jira/browse/HBASE-20107
>             Project: HBase
>          Issue Type: Test
>          Components: wal
>    Affects Versions: 3.0.0
>            Reporter: Zephyr Guo
>            Priority: Minor
>             Fix For: 3.0.0
>
>         Attachments: HBASE-20107-v1.patch
>
>
> RS might get stuck because of  HBASE-14317. I met same problem in my hbase, 
> and HBASE-14317 can solve this problmen very well.
> But I don't get stuck when I run 
> _TestWalLockup.testLockupWhenSyncInMiddleOfZigZagSetup_.
>  We'll never see stuck in this test case, because 
> FailedSyncBeforeLogCloseException will break 
> _zigzagLatch.waitSafePoint(SyncFuture)_. Finally, 
> _zigzagLatch.releaseSafePoint()_ will be call, and _attainSafePoint(long)_ 
> get out stuck.
>  Here, we add a new test case to simulate stuck RS correctly.



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