// do not store locations of last block
/// <summary>
/// Serialize a
/// <see cref="INodeFile"/>
/// node
/// </summary>
/// <param name="node">The node to write</param>
/// <param name="out">
/// The
/// <see cref="System.IO.DataOutputStream"/>
/// where the fields are written
/// </param>
/// <param name="writeBlock">Whether to write block information</param>
/// <exception cref="System.IO.IOException"/>
public static void WriteINodeFile(INodeFile file, DataOutput @out, bool writeUnderConstruction
)
{
WriteLocalName(file, @out);
@out.WriteLong(file.GetId());
@out.WriteShort(file.GetFileReplication());
@out.WriteLong(file.GetModificationTime());
@out.WriteLong(file.GetAccessTime());
@out.WriteLong(file.GetPreferredBlockSize());
WriteBlocks(file.GetBlocks(), @out);
SnapshotFSImageFormat.SaveFileDiffList(file, @out);
if (writeUnderConstruction)
{
if (file.IsUnderConstruction())
{
@out.WriteBoolean(true);
FileUnderConstructionFeature uc = file.GetFileUnderConstructionFeature();
WriteString(uc.GetClientName(), @out);
WriteString(uc.GetClientMachine(), @out);
}
else
{
@out.WriteBoolean(false);
}
}
WritePermissionStatus(file, @out);
}
// Helper function that writes an INodeUnderConstruction
// into the output stream
//
/// <exception cref="System.IO.IOException"/>
internal static void WriteINodeUnderConstruction(DataOutputStream @out, INodeFile
cons, string path)
{
WriteString(path, @out);
@out.WriteLong(cons.GetId());
@out.WriteShort(cons.GetFileReplication());
@out.WriteLong(cons.GetModificationTime());
@out.WriteLong(cons.GetPreferredBlockSize());
WriteBlocks(cons.GetBlocks(), @out);
cons.GetPermissionStatus().Write(@out);
FileUnderConstructionFeature uc = cons.GetFileUnderConstructionFeature();
WriteString(uc.GetClientName(), @out);
WriteString(uc.GetClientMachine(), @out);
@out.WriteInt(0);
}
/// <exception cref="System.IO.IOException"/>
internal void SerializeFilesUCSection(OutputStream @out)
{
IDictionary <string, INodeFile> ucMap = fsn.GetFilesUnderConstruction();
foreach (KeyValuePair <string, INodeFile> entry in ucMap)
{
string path = entry.Key;
INodeFile file = entry.Value;
FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry.Builder b =
FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry.NewBuilder
().SetInodeId(file.GetId()).SetFullPath(path);
FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry e = ((FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry
)b.Build());
e.WriteDelimitedTo(@out);
}
parent.CommitSection(summary, FSImageFormatProtobuf.SectionName.FilesUnderconstruction
);
}
public virtual void TestCommitWithInvalidGenStamp()
{
Path file = new Path("/file");
FSDataOutputStream @out = null;
try
{
@out = dfs.Create(file, (short)1);
INodeFile fileNode = dir.GetINode4Write(file.ToString()).AsFile();
ExtendedBlock previous = null;
Block newBlock = DFSTestUtil.AddBlockToFile(cluster.GetDataNodes(), dfs, cluster.
GetNamesystem(), file.ToString(), fileNode, dfs.GetClient().GetClientName(), previous
, 100);
Block newBlockClone = new Block(newBlock);
previous = new ExtendedBlock(cluster.GetNamesystem().GetBlockPoolId(), newBlockClone
);
previous.SetGenerationStamp(123);
try
{
dfs.GetClient().GetNamenode().Complete(file.ToString(), dfs.GetClient().GetClientName
(), previous, fileNode.GetId());
NUnit.Framework.Assert.Fail("should throw exception because invalid genStamp");
}
catch (IOException e)
{
NUnit.Framework.Assert.IsTrue(e.ToString().Contains("Commit block with mismatching GS. NN has "
+ newBlock + ", client submits " + newBlockClone));
}
previous = new ExtendedBlock(cluster.GetNamesystem().GetBlockPoolId(), newBlock);
bool complete = dfs.GetClient().GetNamenode().Complete(file.ToString(), dfs.GetClient
().GetClientName(), previous, fileNode.GetId());
NUnit.Framework.Assert.IsTrue("should complete successfully", complete);
}
finally
{
IOUtils.Cleanup(null, @out);
}
}
