[HBASE-19910] TestBucketCache TimesOut

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-beta-2, 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 01/Feb/18 02:16
• Updated: 21/Mar/18 22:23
• Resolved: 05/Feb/18 00:45

Description

See https://builds.apache.org/view/H-L/view/HBase/job/PreCommit-HBASE-Build/11303/testReport/org.apache.hadoop.hbase.master.balancer/TestRegionLocationFinder/org_apache_hadoop_hbase_master_balancer_TestRegionLocationFinder/

This is small test. Runs fast locally. 8 tests. Each is a second or two. Odd though up on jenkins is that in the middle of one, there is a 19 second pause. See here:

2018-02-01 00:56:30,013 INFO [Time-limited test] util.ByteBufferArray(70): Allocating buffers total=32 MB, sizePerBuffer=2 MB, count=16
2018-02-01 00:56:49,678 INFO [Time-limited test] bucket.BucketCache(279): Instantiating BucketCache with acceptableFactor: 0.95, minFactor: 0.85, extraFreeFactor: 0.1, singleFactor: 0.25, multiFactor: 0.5, memoryFactor: 0.25

Here is full test run:

2018-02-01 00:56:29,981 INFO [Time-limited test] hbase.ResourceChecker(148): before: io.hfile.bucket.TestBucketCache#testInvalidCacheSplitFactorConfig[1: blockSize=16,384, bucketSizes=[I@20322d26] Thread=77, OpenFileDescriptor=263, MaxFileDescriptor=1048576, SystemLoadAverage=2127, ProcessCount=9, AvailableMemoryMB=7801
2018-02-01 00:56:30,013 INFO [Time-limited test] util.ByteBufferArray(70): Allocating buffers total=32 MB, sizePerBuffer=2 MB, count=16
2018-02-01 00:56:49,678 INFO [Time-limited test] bucket.BucketCache(279): Instantiating BucketCache with acceptableFactor: 0.95, minFactor: 0.85, extraFreeFactor: 0.1, singleFactor: 0.25, multiFactor: 0.5, memoryFactor: 0.25
2018-02-01 00:56:49,689 INFO [Time-limited test] bucket.BucketAllocator(334): Cache totalSize=33288192, buckets=63, bucket capacity=528384=(4*132096)=(FEWEST_ITEMS_IN_BUCKET*(largest configured bucketcache size))
2018-02-01 00:56:49,690 INFO [Time-limited test] bucket.BucketCache(322): Started bucket cache; ioengine=offheap, capacity=32 MB, blockSize=16 KB, writerThreadNum=3, writerQLen=64, persistencePath=null, bucketAllocator=org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator
2018-02-01 00:56:50,020 INFO [Time-limited test] util.ByteBufferArray(70): Allocating buffers total=32 MB, sizePerBuffer=2 MB, count=16
2018-02-01 00:56:50,080 ERROR [Time-limited test] util.ByteBufferArray(101): Buffer creation interrupted
java.lang.InterruptedException
at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
at java.util.concurrent.FutureTask.get(FutureTask.java:191)
at org.apache.hadoop.hbase.util.ByteBufferArray.createBuffers(ByteBufferArray.java:96)
at org.apache.hadoop.hbase.util.ByteBufferArray.<init>(ByteBufferArray.java:74)
at org.apache.hadoop.hbase.io.hfile.bucket.ByteBufferIOEngine.<init>(ByteBufferIOEngine.java:86)
at org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.getIOEngineFromName(BucketCache.java:384)
at org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.<init>(BucketCache.java:262)
at org.apache.hadoop.hbase.io.hfile.bucket.TestBucketCache.checkConfigValues(TestBucketCache.java:387)
at org.apache.hadoop.hbase.io.hfile.bucket.TestBucketCache.testInvalidCacheSplitFactorConfig(TestBucketCache.java:377)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
2018-02-01 00:56:51,112 INFO [Time-limited test] bucket.BucketCache(1171): Shutdown bucket cache: IO persistent=false; path to write=null
2018-02-01 00:56:51,112 INFO [Time-limited test-BucketCacheWriter-2] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-2 exiting, cacheEnabled=false
2018-02-01 00:56:51,112 INFO [Time-limited test-BucketCacheWriter-1] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-1 exiting, cacheEnabled=false
2018-02-01 00:56:51,112 INFO [Time-limited test-BucketCacheWriter-0] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-0 exiting, cacheEnabled=false
2018-02-01 00:56:51,149 INFO [Time-limited test] util.ByteBufferArray(70): Allocating buffers total=32 MB, sizePerBuffer=2 MB, count=16
2018-02-01 00:56:51,157 INFO [Time-limited test] bucket.BucketCache(279): Instantiating BucketCache with acceptableFactor: 0.95, minFactor: 0.85, extraFreeFactor: 0.1, singleFactor: 0.25, multiFactor: 0.5, memoryFactor: 0.25
2018-02-01 00:56:51,157 INFO [Time-limited test] bucket.BucketAllocator(334): Cache totalSize=33288192, buckets=63, bucket capacity=528384=(4*132096)=(FEWEST_ITEMS_IN_BUCKET*(largest configured bucketcache size))
2018-02-01 00:56:51,158 INFO [Time-limited test] bucket.BucketCache(322): Started bucket cache; ioengine=offheap, capacity=32 MB, blockSize=16 KB, writerThreadNum=3, writerQLen=64, persistencePath=null, bucketAllocator=org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator
2018-02-01 00:56:51,158 INFO [Time-limited test] bucket.BucketCache(1171): Shutdown bucket cache: IO persistent=false; path to write=null
2018-02-01 00:56:51,158 INFO [Time-limited test-BucketCacheWriter-0] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-0 exiting, cacheEnabled=false
2018-02-01 00:56:51,158 INFO [Time-limited test-BucketCacheWriter-2] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-2 exiting, cacheEnabled=false
2018-02-01 00:56:51,158 INFO [Time-limited test-BucketCacheWriter-1] bucket.BucketCache$WriterThread(928): Time-limited test-BucketCacheWriter-1 exiting, cacheEnabled=false

It does not look like > 30 seconds. More like 22seconds. Hmm.. Signal not so clear on this one.

Here is complaint.

org.junit.runners.model.TestTimedOutException: test timed out after 30 seconds
at org.apache.hadoop.hbase.io.hfile.bucket.TestBucketCache.setup(TestBucketCache.java:130)

Let me try making it a medium test since it fails frequently.

Issue Links

• is a child of: HBASE-19878 Fix the timeout UTs introduced by HBASE-19873