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https://issues.apache.org/jira/browse/HADOOP-15363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16425938#comment-16425938
 ] 

Steve Loughran commented on HADOOP-15363:
-----------------------------------------

Stack. Could not replicate on 2x followups. Surfaced during a heavy-load 
parallel test run BTW.
{code}
[ERROR] testOpenFailOnRead(org.apache.hadoop.fs.s3a.ITestS3AInconsistency)  
Time elapsed: 9.95 s  <<< FAILURE!
java.lang.AssertionError: S3Guard failed to handle fail-on-read
        at 
org.apache.hadoop.fs.contract.ContractTestUtils.fail(ContractTestUtils.java:528)
        at 
org.apache.hadoop.fs.s3a.ITestS3AInconsistency.doOpenFailOnReadTest(ITestS3AInconsistency.java:185)
        at 
org.apache.hadoop.fs.s3a.ITestS3AInconsistency.testOpenFailOnRead(ITestS3AInconsistency.java:162)
        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.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
        at 
org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
Caused by: java.io.FileNotFoundException: read(b, 0, 4) on key 
fork-0002/test/ancestor/file-to-read-DELAY_LISTING_ME failed: injecting error 
51/100 for test.
        at 
org.apache.hadoop.fs.s3a.InconsistentS3Object.readFailpoint(InconsistentS3Object.java:158)
        at 
org.apache.hadoop.fs.s3a.InconsistentS3Object.access$200(InconsistentS3Object.java:39)
        at 
org.apache.hadoop.fs.s3a.InconsistentS3Object$InconsistentS3InputStream.read(InconsistentS3Object.java:227)
        at 
org.apache.hadoop.fs.s3a.S3AInputStream.lambda$read$3(S3AInputStream.java:451)
        at org.apache.hadoop.fs.s3a.Invoker.once(Invoker.java:109)
        at org.apache.hadoop.fs.s3a.Invoker.lambda$retry$3(Invoker.java:260)
        at org.apache.hadoop.fs.s3a.Invoker.retryUntranslated(Invoker.java:317)
        at org.apache.hadoop.fs.s3a.Invoker.retry(Invoker.java:256)
        at org.apache.hadoop.fs.s3a.Invoker.retry(Invoker.java:231)
        at org.apache.hadoop.fs.s3a.S3AInputStream.read(S3AInputStream.java:441)
        at java.io.DataInputStream.read(DataInputStream.java:149)
        at 
org.apache.hadoop.fs.s3a.ITestS3AInconsistency.doOpenFailOnReadTest(ITestS3AInconsistency.java:178)
        ... 13 more
{code}

> (transient) ITestS3AInconsistency.testOpenFailOnRead S3Guard failure
> --------------------------------------------------------------------
>
>                 Key: HADOOP-15363
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15363
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.2.0
>            Reporter: Steve Loughran
>            Priority: Major
>
> Test failure
> {code}
>   ITestS3AInconsistency.testOpenFailOnRead:162->doOpenFailOnReadTest:185 
> S3Guard failed to handle fail-on-read
> {code}



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