/// <summary>For namenode, Verify that the current and previous directories exist.</summary>
/// <remarks>
/// For namenode, Verify that the current and previous directories exist.
/// Verify that previous hasn't been modified by comparing the checksum of all
/// its files with their original checksum. It is assumed that the
/// server has recovered and upgraded.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
internal virtual void CheckNameNode(string[] baseDirs, long imageTxId)
{
foreach (string baseDir in baseDirs)
{
Log.Info("Checking namenode directory " + baseDir);
Log.Info("==== Contents ====:\n " + Joiner.On(" \n").Join(new FilePath(baseDir,
"current").List()));
Log.Info("==================");
GenericTestUtils.AssertExists(new FilePath(baseDir, "current"));
GenericTestUtils.AssertExists(new FilePath(baseDir, "current/VERSION"));
GenericTestUtils.AssertExists(new FilePath(baseDir, "current/" + NNStorage.GetInProgressEditsFileName
(imageTxId + 1)));
GenericTestUtils.AssertExists(new FilePath(baseDir, "current/" + NNStorage.GetImageFileName
(imageTxId)));
GenericTestUtils.AssertExists(new FilePath(baseDir, "current/seen_txid"));
FilePath previous = new FilePath(baseDir, "previous");
GenericTestUtils.AssertExists(previous);
NUnit.Framework.Assert.AreEqual(UpgradeUtilities.ChecksumContents(HdfsServerConstants.NodeType
.NameNode, previous, false), UpgradeUtilities.ChecksumMasterNameNodeContents());
}
}
/// <summary>
/// For NameNode, verify that the current and/or previous exist as indicated by
/// the method parameters.
/// </summary>
/// <remarks>
/// For NameNode, verify that the current and/or previous exist as indicated by
/// the method parameters. If previous exists, verify that
/// it hasn't been modified by comparing the checksum of all it's
/// containing files with their original checksum. It is assumed that
/// the server has recovered.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
internal virtual void CheckResultNameNode(string[] baseDirs, bool currentShouldExist
, bool previousShouldExist)
{
if (currentShouldExist)
{
for (int i = 0; i < baseDirs.Length; i++)
{
NUnit.Framework.Assert.IsTrue(new FilePath(baseDirs[i], "current").IsDirectory());
NUnit.Framework.Assert.IsTrue(new FilePath(baseDirs[i], "current/VERSION").IsFile
());
NUnit.Framework.Assert.IsNotNull(FSImageTestUtil.FindNewestImageFile(baseDirs[i]
+ "/current"));
NUnit.Framework.Assert.IsTrue(new FilePath(baseDirs[i], "current/seen_txid").IsFile
());
}
}
if (previousShouldExist)
{
for (int i = 0; i < baseDirs.Length; i++)
{
NUnit.Framework.Assert.IsTrue(new FilePath(baseDirs[i], "previous").IsDirectory()
);
NUnit.Framework.Assert.AreEqual(UpgradeUtilities.ChecksumContents(HdfsServerConstants.NodeType
.NameNode, new FilePath(baseDirs[i], "previous"), false), UpgradeUtilities.ChecksumMasterNameNodeContents
());
}
}
}
