public virtual void TestSharedEditsMissingLogs()
{
RemoveStandbyNameDirs();
CheckpointSignature sig = nn0.GetRpcServer().RollEditLog();
NUnit.Framework.Assert.AreEqual(3, sig.GetCurSegmentTxId());
// Should have created edits_1-2 in shared edits dir
URI editsUri = cluster.GetSharedEditsDir(0, 1);
FilePath editsDir = new FilePath(editsUri);
FilePath editsSegment = new FilePath(new FilePath(editsDir, "current"), NNStorage
.GetFinalizedEditsFileName(1, 2));
GenericTestUtils.AssertExists(editsSegment);
// Delete the segment.
NUnit.Framework.Assert.IsTrue(editsSegment.Delete());
// Trying to bootstrap standby should now fail since the edit
// logs aren't available in the shared dir.
GenericTestUtils.LogCapturer logs = GenericTestUtils.LogCapturer.CaptureLogs(LogFactory
.GetLog(typeof(BootstrapStandby)));
try
{
int rc = BootstrapStandby.Run(new string[] { "-force" }, cluster.GetConfiguration
(1));
NUnit.Framework.Assert.AreEqual(BootstrapStandby.ErrCodeLogsUnavailable, rc);
}
finally
{
logs.StopCapturing();
}
GenericTestUtils.AssertMatches(logs.GetOutput(), "FATAL.*Unable to read transaction ids 1-3 from the configured shared"
);
}
/// <exception cref="System.IO.IOException"/>
private void ShutdownClusterAndRemoveSharedEditsDir()
{
cluster.ShutdownNameNode(0);
cluster.ShutdownNameNode(1);
FilePath sharedEditsDir = new FilePath(cluster.GetSharedEditsDir(0, 1));
NUnit.Framework.Assert.IsTrue(FileUtil.FullyDelete(sharedEditsDir));
}
/// <exception cref="System.Exception"/>
private static void WaitForLogRollInSharedDir(MiniDFSCluster cluster, long startTxId
)
{
URI sharedUri = cluster.GetSharedEditsDir(0, 1);
FilePath sharedDir = new FilePath(sharedUri.GetPath(), "current");
FilePath expectedLog = new FilePath(sharedDir, NNStorage.GetInProgressEditsFileName
(startTxId));
GenericTestUtils.WaitFor(new _Supplier_153(expectedLog), 100, 10000);
}
/// <exception cref="System.IO.IOException"/>
private static void CreateEmptyInProgressEditLog(MiniDFSCluster cluster, NameNode
nn, bool writeHeader)
{
long txid = nn.GetNamesystem().GetEditLog().GetLastWrittenTxId();
URI sharedEditsUri = cluster.GetSharedEditsDir(0, 1);
FilePath sharedEditsDir = new FilePath(sharedEditsUri.GetPath());
Storage.StorageDirectory storageDir = new Storage.StorageDirectory(sharedEditsDir
);
FilePath inProgressFile = NameNodeAdapter.GetInProgressEditsFile(storageDir, txid
+ 1);
NUnit.Framework.Assert.IsTrue("Failed to create in-progress edits file", inProgressFile
.CreateNewFile());
if (writeHeader)
{
DataOutputStream @out = new DataOutputStream(new FileOutputStream(inProgressFile)
);
EditLogFileOutputStream.WriteHeader(NameNodeLayoutVersion.CurrentLayoutVersion, @out
);
@out.Close();
}
}