[HDFS-11964] Decoding inputs should be correctly prepared in pread

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha3
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding
• Target Version/s: 3.0.0-beta1
• Hadoop Flags: Reviewed
• Assignee: Takanobu Asanuma
• Reporter: Lei (Eddy) Xu
• Created: 10/Jun/17 02:42
• Updated: 02/Oct/19 17:12
• Resolved: 01/Sep/17 09:49

Description

TestDFSStripedInputStreamWithRandomECPolicy#testPreadWithDNFailure fails on trunk:

Running org.apache.hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy
Tests run: 5, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 10.99 sec <<< FAILURE! - in org.apache.hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy
testPreadWithDNFailure(org.apache.hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy)  Time elapsed: 1.265 sec  <<< FAILURE!
org.junit.internal.ArrayComparisonFailure: arrays first differed at element [327680]; expected:<-36> but was:<2>
	at org.junit.internal.ComparisonCriteria.arrayEquals(ComparisonCriteria.java:50)
	at org.junit.Assert.internalArrayEquals(Assert.java:473)
	at org.junit.Assert.assertArrayEquals(Assert.java:294)
	at org.junit.Assert.assertArrayEquals(Assert.java:305)
	at org.apache.hadoop.hdfs.TestDFSStripedInputStream.testPreadWithDNFailure(TestDFSStripedInputStream.java:306)
	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$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)

Issue Links

• relates to: HDFS-9962 Erasure Coding: need a way to test multiple EC policies