/// <exception cref="System.IO.IOException"/>
private TestFailureToReadEdits.LimitedEditLogAnswer CauseFailureOnEditLogRead()
{
FSEditLog spyEditLog = NameNodeAdapter.SpyOnEditLog(nn1);
TestFailureToReadEdits.LimitedEditLogAnswer answer = new TestFailureToReadEdits.LimitedEditLogAnswer
();
Org.Mockito.Mockito.DoAnswer(answer).When(spyEditLog).SelectInputStreams(Matchers.AnyLong
(), Matchers.AnyLong(), (MetaRecoveryContext)Matchers.AnyObject(), Matchers.AnyBoolean
());
return(answer);
}
public virtual void TestFailuretoReadEdits()
{
NUnit.Framework.Assert.IsTrue(fs.Mkdirs(new Path(TestDir1)));
HATestUtil.WaitForStandbyToCatchUp(nn0, nn1);
// If these two ops are applied twice, the first op will throw an
// exception the second time its replayed.
fs.SetOwner(new Path(TestDir1), "foo", "bar");
NUnit.Framework.Assert.IsTrue(fs.Delete(new Path(TestDir1), true));
// This op should get applied just fine.
NUnit.Framework.Assert.IsTrue(fs.Mkdirs(new Path(TestDir2)));
// This is the op the mocking will cause to fail to be read.
NUnit.Framework.Assert.IsTrue(fs.Mkdirs(new Path(TestDir3)));
TestFailureToReadEdits.LimitedEditLogAnswer answer = CauseFailureOnEditLogRead();
try
{
HATestUtil.WaitForStandbyToCatchUp(nn0, nn1);
NUnit.Framework.Assert.Fail("Standby fully caught up, but should not have been able to"
);
}
catch (HATestUtil.CouldNotCatchUpException)
{
}
// Expected. The NN did not exit.
// Null because it was deleted.
NUnit.Framework.Assert.IsNull(NameNodeAdapter.GetFileInfo(nn1, TestDir1, false));
// Should have been successfully created.
NUnit.Framework.Assert.IsTrue(NameNodeAdapter.GetFileInfo(nn1, TestDir2, false).IsDir
());
// Null because it hasn't been created yet.
NUnit.Framework.Assert.IsNull(NameNodeAdapter.GetFileInfo(nn1, TestDir3, false));
// Now let the standby read ALL the edits.
answer.SetThrowExceptionOnRead(false);
HATestUtil.WaitForStandbyToCatchUp(nn0, nn1);
// Null because it was deleted.
NUnit.Framework.Assert.IsNull(NameNodeAdapter.GetFileInfo(nn1, TestDir1, false));
// Should have been successfully created.
NUnit.Framework.Assert.IsTrue(NameNodeAdapter.GetFileInfo(nn1, TestDir2, false).IsDir
());
// Should now have been successfully created.
NUnit.Framework.Assert.IsTrue(NameNodeAdapter.GetFileInfo(nn1, TestDir3, false).IsDir
());
}
