YARN-10733. TimelineService Hbase tests failing with timeouts

[amahussein]

YARN-10733: TimelineService Hbase tests are failing with timeout error on branch-2.10

Timeout running hadoop-yarn-server-timelineservice-hbase-tests. The failure of the tests is due to test unit TestHBaseStorageFlowRunCompaction getting stuck.
Upon checking the surefire reports, I found several Class no Found Exceptions.

Caused by: java.lang.NoClassDefFoundError: org/apache/hadoop/fs/CanUnbuffer
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.apache.hadoop.hbase.regionserver.StoreFileInfo.<clinit>(StoreFileInfo.java:66)
	at org.apache.hadoop.hbase.regionserver.HStore.createStoreFileAndReader(HStore.java:698)
	at org.apache.hadoop.hbase.regionserver.HStore.validateStoreFile(HStore.java:1895)
	at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1009)
	at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
	at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2638)
	... 33 more
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.fs.CanUnbuffer
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 51 more

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	11m 20s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s	The patch appears to include 1 new or modified test files.
		_ branch-2.10 Compile Tests _
+0 🆗	mvndep	3m 4s	Maven dependency ordering for branch
+1 💚	mvninstall	13m 33s	branch-2.10 passed
+1 💚	compile	13m 5s	branch-2.10 passed with JDK Azul Systems, Inc.-1.7.0_262-b10
+1 💚	compile	10m 47s	branch-2.10 passed with JDK Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
+1 💚	checkstyle	1m 52s	branch-2.10 passed
+1 💚	mvnsite	1m 10s	branch-2.10 passed
+1 💚	javadoc	1m 2s	branch-2.10 passed with JDK Azul Systems, Inc.-1.7.0_262-b10
+1 💚	javadoc	1m 0s	branch-2.10 passed with JDK Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
+0 🆗	spotbugs	7m 53s	Both FindBugs and SpotBugs are enabled, using SpotBugs.
+0 🆗	spotbugs	0m 34s	branch/hadoop-project no spotbugs output file (spotbugsXml.xml)
		_ Patch Compile Tests _
+0 🆗	mvndep	0m 27s	Maven dependency ordering for patch
+1 💚	mvninstall	0m 36s	the patch passed
+1 💚	compile	12m 26s	the patch passed with JDK Azul Systems, Inc.-1.7.0_262-b10
+1 💚	javac	12m 26s	the patch passed
+1 💚	compile	10m 42s	the patch passed with JDK Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
+1 💚	javac	10m 42s	the patch passed
+1 💚	checkstyle	1m 51s	the patch passed
+1 💚	mvnsite	1m 13s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	xml	0m 1s	The patch has no ill-formed XML file.
+1 💚	javadoc	1m 1s	the patch passed with JDK Azul Systems, Inc.-1.7.0_262-b10
+1 💚	javadoc	0m 57s	the patch passed with JDK Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
+0 🆗	spotbugs	0m 28s	hadoop-project has no data from spotbugs
		_ Other Tests _
+1 💚	unit	0m 30s	hadoop-project in the patch passed.
+1 💚	unit	6m 24s	hadoop-yarn-server-timelineservice-hbase-tests in the patch passed.
+1 💚	asflicense	0m 50s	The patch does not generate ASF License warnings.
		104m 19s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2899/1/artifact/out/Dockerfile
GITHUB PR	#2899
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient xml spotbugs checkstyle
uname	Linux e231c4fa59d8 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-2.10 / cb5e41a
Default Java	Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
Multi-JDK versions	/usr/lib/jvm/zulu-7-amd64:Azul Systems, Inc.-1.7.0_262-b10 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_282-8u282-b08-0ubuntu1~16.04-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2899/1/testReport/
Max. process+thread count	752 (vs. ulimit of 5500)
modules	C: hadoop-project hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase-tests U: .
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2899/1/console
versions	git=2.7.4 maven=3.3.9 spotbugs=4.2.2
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[jbrennan333]

+1 this looks good to me