/*
* Finalize the block pool storage by deleting <BP>/previous directory
* that holds the snapshot.
*/
/// <exception cref="System.IO.IOException"/>
internal virtual void DoFinalize(FilePath dnCurDir)
{
FilePath bpRoot = GetBpRoot(blockpoolID, dnCurDir);
Storage.StorageDirectory bpSd = new Storage.StorageDirectory(bpRoot);
// block pool level previous directory
FilePath prevDir = bpSd.GetPreviousDir();
if (!prevDir.Exists())
{
return;
}
// already finalized
string dataDirPath = bpSd.GetRoot().GetCanonicalPath();
Log.Info("Finalizing upgrade for storage directory " + dataDirPath + ".\n cur LV = "
+ this.GetLayoutVersion() + "; cur CTime = " + this.GetCTime());
System.Diagnostics.Debug.Assert(bpSd.GetCurrentDir().Exists(), "Current directory must exist."
);
// rename previous to finalized.tmp
FilePath tmpDir = bpSd.GetFinalizedTmp();
Rename(prevDir, tmpDir);
// delete finalized.tmp dir in a separate thread
new Daemon(new _Runnable_618(tmpDir, dataDirPath)).Start();
}
/// <summary>Finalize the upgrade.</summary>
/// <remarks>
/// Finalize the upgrade. The previous dir, if any, will be renamed and
/// removed. After this is completed, rollback is no longer allowed.
/// </remarks>
/// <param name="sd">the storage directory to finalize</param>
/// <exception cref="System.IO.IOException">in the event of error</exception>
internal static void DoFinalize(Storage.StorageDirectory sd)
{
FilePath prevDir = sd.GetPreviousDir();
if (!prevDir.Exists())
{
// already discarded
Log.Info("Directory " + prevDir + " does not exist.");
Log.Info("Finalize upgrade for " + sd.GetRoot() + " is not required.");
return;
}
Log.Info("Finalizing upgrade of storage directory " + sd.GetRoot());
Preconditions.CheckState(sd.GetCurrentDir().Exists(), "Current directory must exist."
);
FilePath tmpDir = sd.GetFinalizedTmp();
// rename previous to tmp and remove
NNStorage.Rename(prevDir, tmpDir);
NNStorage.DeleteDir(tmpDir);
Log.Info("Finalize upgrade for " + sd.GetRoot() + " is complete.");
}
