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Steve Loughran commented on HADOOP-15446: ----------------------------------------- I ran this against azure ireland and got two test failures {code} [ERROR] Tests run: 11, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 40.141 s <<< FAILURE! - in org.apache.hadoop.fs.azure.TestPageBlobInputStream [ERROR] test_0307_SkipBounds(org.apache.hadoop.fs.azure.TestPageBlobInputStream) Time elapsed: 0.773 s <<< FAILURE! java.lang.AssertionError: There should not be any network I/O (elapsedTimeMs=36). at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.assertTrue(Assert.java:41) at org.apache.hadoop.fs.azure.TestPageBlobInputStream.test_0307_SkipBounds(TestPageBlobInputStream.java:363) 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) [ERROR] test_0309_SeekBounds(org.apache.hadoop.fs.azure.TestPageBlobInputStream) Time elapsed: 0.755 s <<< FAILURE! java.lang.AssertionError: There should not be any network I/O (elapsedTimeMs=36). at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.assertTrue(Assert.java:41) at org.apache.hadoop.fs.azure.TestPageBlobInputStream.test_0309_SeekBounds(TestPageBlobInputStream.java:414) 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) {code} > WASB: PageBlobInputStream.skip breaks HBASE replication > ------------------------------------------------------- > > Key: HADOOP-15446 > URL: https://issues.apache.org/jira/browse/HADOOP-15446 > Project: Hadoop Common > Issue Type: Bug > Components: fs/azure > Affects Versions: 2.9.0, 3.0.2 > Reporter: Thomas Marquardt > Assignee: Thomas Marquardt > Priority: Major > Attachments: HADOOP-15446-001.patch > > > Page Blobs are primarily used by HBASE. HBASE replication, which apparently > has not been used with WASB until recently, performs non-sequential reads on > log files using PageBlobInputStream. There are bugs in this stream > implementation which prevent skip and seek from working properly, and > eventually the stream state becomes corrupt and unusable. > I believe this bug affects all releases of WASB/HADOOP. It appears to be a > day-0 bug in PageBlobInputStream. There were similar bugs opened in the past > (HADOOP-15042) but the issue was not properly fixed, and no test coverage was > added. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org