[HBASE-18157] TestLockProcedure is flaky in master branch

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Ted Yu
• Created: 04/Jun/17 14:32
• Updated: 29/Jun/17 15:33
• Resolved: 29/Jun/17 15:33

Description

From https://builds.apache.org/job/PreCommit-HBASE-Build/7060/artifact/patchprocess/patch-unit-hbase-server.txt :

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)

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%.