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Posted to common-issues@hadoop.apache.org by "Steve Loughran (Jira)" <ji...@apache.org> on 2020/08/03 18:47:00 UTC
[jira] [Commented] (HADOOP-17181) ITestS3AContractUnbuffer failure
-stream.read didn't return all data
[ https://issues.apache.org/jira/browse/HADOOP-17181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17170351#comment-17170351 ]
Steve Loughran commented on HADOOP-17181:
-----------------------------------------
{code}
[ERROR] testUnbufferOnClosedFile(org.apache.hadoop.fs.contract.s3a.ITestS3AContractUnbuffer) Time elapsed: 1.23 s <<< FAILURE!
java.lang.AssertionError: failed to read expected number of bytes from stream expected:<1024> but was:<433>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:834)
at org.junit.Assert.assertEquals(Assert.java:645)
at org.apache.hadoop.fs.contract.AbstractContractUnbufferTest.validateFileContents(AbstractContractUnbufferTest.java:139)
at org.apache.hadoop.fs.contract.AbstractContractUnbufferTest.validateFullFileContents(AbstractContractUnbufferTest.java:132)
at org.apache.hadoop.fs.contract.AbstractContractUnbufferTest.testUnbufferOnClosedFile(AbstractContractUnbufferTest.java:83)
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.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
at org.junit.internal.runners.statements.FailOnTimeout$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)
{code}
> ITestS3AContractUnbuffer failure -stream.read didn't return all data
> --------------------------------------------------------------------
>
> Key: HADOOP-17181
> URL: https://issues.apache.org/jira/browse/HADOOP-17181
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Priority: Minor
>
> Seen 2x recently, failure in ITestS3AContractUnbuffer as not enough data came back in the read.
> The contract test assumes that stream.read() will return everything, but it could be some buffering problem. Proposed: switch to ReadFully to see if it is a quirk of the read/get or is something actually wrong with the production code.
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