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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18157) TestLockProcedure is flaky in master branch
Date Sun, 04 Jun 2017 14:33:04 GMT
Ted Yu created HBASE-18157:
------------------------------

             Summary: TestLockProcedure is flaky in master branch
                 Key: HBASE-18157
                 URL: https://issues.apache.org/jira/browse/HBASE-18157
             Project: HBase
          Issue Type: Test
            Reporter: Ted Yu


>From https://builds.apache.org/job/PreCommit-HBASE-Build/7060/artifact/patchprocess/patch-unit-hbase-server.txt
:
{code}
testLocalMasterLockRecovery(org.apache.hadoop.hbase.master.locking.TestLockProcedure)  Time
elapsed: 30.049 sec  <<< ERROR!
java.lang.Exception: Appears to be stuck in thread ResponseProcessor for block BP-387952765-172.17.0.2-1496577331729:blk_1073741842_1018
	at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
	at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
	at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
	at org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:335)
	at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:157)
	at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
	at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
	at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
{code}
TestLockProcedure is a small test. Its failure would prevent medium / large tests from running.

According to https://builds.apache.org/job/HBASE-Find-Flaky-Tests/lastSuccessfulBuild/artifact/dashboard.html
, its flaky rate is 33%.



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