[HBASE-14807] TestWALLockup is flakey

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 1.1.4, 2.0.0
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 13/Nov/15 06:35
• Updated: 23/Jun/22 18:51
• Resolved: 16/Dec/15 17:43

Description

Fails frequently.

Looks like this:

2015-11-12 10:38:51,812 DEBUG [Time-limited test] regionserver.HRegion(3882): Found 0 recovered edits file(s) under /home/jenkins/jenkins-slave/workspace/HBase-1.2/jdk/latest1.7/label/Hadoop/hbase-server/target/test-data/8b8f8f12-1819-47e3-b1f1-8ffa789438ad/data/default/testLockupWhenSyncInMiddleOfZigZagSetup/c8694b53368f3301a8d370089120388d
2015-11-12 10:38:51,821 DEBUG [Time-limited test] regionserver.FlushLargeStoresPolicy(56): hbase.hregion.percolumnfamilyflush.size.lower.bound is not specified, use global config(16777216) instead
2015-11-12 10:38:51,880 DEBUG [Time-limited test] wal.WALSplitter(729): Wrote region seqId=/home/jenkins/jenkins-slave/workspace/HBase-1.2/jdk/latest1.7/label/Hadoop/hbase-server/target/test-data/8b8f8f12-1819-47e3-b1f1-8ffa789438ad/data/default/testLockupWhenSyncInMiddleOfZigZagSetup/c8694b53368f3301a8d370089120388d/recovered.edits/2.seqid to file, newSeqId=2, maxSeqId=0
2015-11-12 10:38:51,881 INFO  [Time-limited test] regionserver.HRegion(868): Onlined c8694b53368f3301a8d370089120388d; next sequenceid=2
2015-11-12 10:38:51,994 ERROR [sync.1] wal.FSHLog$SyncRunner(1226): Error syncing, request close of WAL
java.io.IOException: FAKE! Failed to replace a bad datanode...SYNC
	at org.apache.hadoop.hbase.regionserver.TestWALLockup$1DodgyFSLog$1.sync(TestWALLockup.java:162)
	at org.apache.hadoop.hbase.regionserver.wal.FSHLog$SyncRunner.run(FSHLog.java:1222)
	at java.lang.Thread.run(Thread.java:745)
2015-11-12 10:38:51,997 DEBUG [Thread-4] regionserver.LogRoller(139): WAL roll requested
2015-11-12 10:38:52,019 DEBUG [flusher] regionserver.FlushLargeStoresPolicy(100): Since none of the CFs were above the size, flushing all.
2015-11-12 10:38:52,192 INFO  [Thread-4] regionserver.TestWALLockup$1DodgyFSLog(129): LATCHED
java.lang.InterruptedException: sleep interrupted
	at java.lang.Thread.sleep(Native Method)
	at org.apache.hadoop.hbase.util.Threads.sleep(Threads.java:146)
	at org.apache.hadoop.hbase.regionserver.TestWALLockup.testLockupWhenSyncInMiddleOfZigZagSetup(TestWALLockup.java:245)
2015-11-12 10:39:18,609 INFO  [main] regionserver.TestWALLockup(91): Cleaning test directory: /home/jenkins/jenkins-slave/workspace/HBase-1.2/jdk/latest1.7/label/Hadoop/hbase-server/target/test-data/8b8f8f12-1819-47e3-b1f1-8ffa789438ad
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.lang.Thread.run(Thread.java:745)

... then times out after being locked up for 30 seconds. Writes 50+MB of logs while spinning.

Reported as this:

-------------------------------------------------------------------------------
Test set: org.apache.hadoop.hbase.regionserver.TestWALLockup
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 198.23 sec <<< FAILURE! - in org.apache.hadoop.hbase.regionserver.TestWALLockup
testLockupWhenSyncInMiddleOfZigZagSetup(org.apache.hadoop.hbase.regionserver.TestWALLockup)  Time elapsed: 0.049 sec  <<< ERROR!
org.junit.runners.model.TestTimedOutException: test timed out after 30000 milliseconds
	at org.apache.log4j.Category.callAppenders(Category.java:205)
	at org.apache.log4j.Category.forcedLog(Category.java:391)
	at org.apache.log4j.Category.log(Category.java:856)
	at org.apache.commons.logging.impl.Log4JLogger.debug(Log4JLogger.java:155)
	at org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1386)
	at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1352)
	at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1302)
	at org.apache.hadoop.hbase.regionserver.TestWALLockup.testLockupWhenSyncInMiddleOfZigZagSetup(TestWALLockup.java:260)

Failed here most recently:

https://builds.apache.org/view/H-L/view/HBase/job/HBase-1.2/364/jdk=latest1.7,label=Hadoop/

Issue Links

• is related to: HBASE-15170 Backport HBASE-14807 'TestWALLockup is flakey' to branch-1.1