/// <exception cref="System.IO.IOException"/>
public void Apply(JournalSet.JournalAndStream jas)
{
if (jas.IsActive())
{
jas.GetCurrentStream().Flush();
}
}
/// <exception cref="System.IO.IOException"/>
public void Apply(JournalSet.JournalAndStream jas)
{
if (jas.IsActive())
{
jas.GetCurrentStream().Create(layoutVersion);
}
}
/// <exception cref="System.IO.IOException"/>
public void Apply(JournalSet.JournalAndStream jas)
{
if (jas.IsActive())
{
jas.GetCurrentStream().WriteRaw(data, offset, length);
}
}
/// <exception cref="System.IO.IOException"/>
public void Apply(JournalSet.JournalAndStream jas)
{
if (jas.IsActive())
{
jas.CloseStream();
jas.GetManager().FinalizeLogSegment(firstTxId, lastTxId);
}
}
public virtual void TestSingleRequiredFailedEditsDirOnSetReadyToFlush()
{
// Set one of the edits dirs to be required.
string[] editsDirs = cluster.GetConfiguration(0).GetTrimmedStrings(DFSConfigKeys.
DfsNamenodeNameDirKey);
ShutDownMiniCluster();
Configuration conf = new HdfsConfiguration();
conf.Set(DFSConfigKeys.DfsNamenodeEditsDirRequiredKey, editsDirs[0]);
conf.SetInt(DFSConfigKeys.DfsNamenodeEditsDirMinimumKey, 0);
conf.SetInt(DFSConfigKeys.DfsNamenodeCheckedVolumesMinimumKey, 0);
SetUpMiniCluster(conf, true);
NUnit.Framework.Assert.IsTrue(DoAnEdit());
// Invalidated the one required edits journal.
InvalidateEditsDirAtIndex(0, false, false);
JournalSet.JournalAndStream nonRequiredJas = GetJournalAndStream(1);
EditLogFileOutputStream nonRequiredSpy = SpyOnStream(nonRequiredJas);
// The NN has not terminated (no ExitException thrown)
// ..and that the other stream is active.
NUnit.Framework.Assert.IsTrue(nonRequiredJas.IsActive());
try
{
DoAnEdit();
NUnit.Framework.Assert.Fail("A single failure of a required journal should have halted the NN"
);
}
catch (RemoteException re)
{
NUnit.Framework.Assert.IsTrue(re.GetClassName().Contains("ExitException"));
GenericTestUtils.AssertExceptionContains("setReadyToFlush failed for required journal"
, re);
}
// Since the required directory failed setReadyToFlush, and that
// directory was listed prior to the non-required directory,
// we should not call setReadyToFlush on the non-required
// directory. Regression test for HDFS-2874.
Org.Mockito.Mockito.Verify(nonRequiredSpy, Org.Mockito.Mockito.Never()).SetReadyToFlush
();
NUnit.Framework.Assert.IsFalse(nonRequiredJas.IsActive());
}
