/// <exception cref="System.IO.IOException"/>
private void OnAppend(ChannelHandlerContext ctx)
{
WriteContinueHeader(ctx);
string nnId = @params.NamenodeId();
int bufferSize = @params.BufferSize();
DFSClient dfsClient = NewDfsClient(nnId, conf);
OutputStream @out = dfsClient.Append(path, bufferSize, EnumSet.Of(CreateFlag.Append
), null, null);
DefaultHttpResponse resp = new DefaultHttpResponse(HttpVersion.Http11, HttpResponseStatus
.Ok);
resp.Headers().Set(HttpHeaders.Names.ContentLength, 0);
ctx.Pipeline().Replace(this, typeof(HdfsWriter).Name, new HdfsWriter(dfsClient, @out
, resp));
}
/// <exception cref="System.IO.IOException"/>
internal virtual void HandleWrite(DFSClient dfsClient, WRITE3Request request, Org.Jboss.Netty.Channel.Channel
channel, int xid, Nfs3FileAttributes preOpAttr)
{
int count = request.GetCount();
byte[] data = ((byte[])request.GetData().Array());
if (data.Length < count)
{
WRITE3Response response = new WRITE3Response(Nfs3Status.Nfs3errInval);
Nfs3Utils.WriteChannel(channel, response.Serialize(new XDR(), xid, new VerifierNone
()), xid);
return;
}
FileHandle handle = request.GetHandle();
if (Log.IsDebugEnabled())
{
Log.Debug("handleWrite " + request);
}
// Check if there is a stream to write
FileHandle fileHandle = request.GetHandle();
OpenFileCtx openFileCtx = fileContextCache.Get(fileHandle);
if (openFileCtx == null)
{
Log.Info("No opened stream for fileId: " + fileHandle.GetFileId());
string fileIdPath = Nfs3Utils.GetFileIdPath(fileHandle.GetFileId());
HdfsDataOutputStream fos = null;
Nfs3FileAttributes latestAttr = null;
try
{
int bufferSize = config.GetInt(CommonConfigurationKeysPublic.IoFileBufferSizeKey,
CommonConfigurationKeysPublic.IoFileBufferSizeDefault);
fos = dfsClient.Append(fileIdPath, bufferSize, EnumSet.Of(CreateFlag.Append), null
, null);
latestAttr = Nfs3Utils.GetFileAttr(dfsClient, fileIdPath, iug);
}
catch (RemoteException e)
{
IOException io = e.UnwrapRemoteException();
if (io is AlreadyBeingCreatedException)
{
Log.Warn("Can't append file: " + fileIdPath + ". Possibly the file is being closed. Drop the request: "
+ request + ", wait for the client to retry...");
return;
}
throw;
}
catch (IOException e)
{
Log.Error("Can't append to file: " + fileIdPath, e);
if (fos != null)
{
fos.Close();
}
WccData fileWcc = new WccData(Nfs3Utils.GetWccAttr(preOpAttr), preOpAttr);
WRITE3Response response = new WRITE3Response(Nfs3Status.Nfs3errIo, fileWcc, count
, request.GetStableHow(), Nfs3Constant.WriteCommitVerf);
Nfs3Utils.WriteChannel(channel, response.Serialize(new XDR(), xid, new VerifierNone
()), xid);
return;
}
// Add open stream
string writeDumpDir = config.Get(NfsConfigKeys.DfsNfsFileDumpDirKey, NfsConfigKeys
.DfsNfsFileDumpDirDefault);
openFileCtx = new OpenFileCtx(fos, latestAttr, writeDumpDir + "/" + fileHandle.GetFileId
(), dfsClient, iug, aixCompatMode, config);
if (!AddOpenFileStream(fileHandle, openFileCtx))
{
Log.Info("Can't add new stream. Close it. Tell client to retry.");
try
{
fos.Close();
}
catch (IOException e)
{
Log.Error("Can't close stream for fileId: " + handle.GetFileId(), e);
}
// Notify client to retry
WccData fileWcc = new WccData(latestAttr.GetWccAttr(), latestAttr);
WRITE3Response response = new WRITE3Response(Nfs3Status.Nfs3errJukebox, fileWcc,
0, request.GetStableHow(), Nfs3Constant.WriteCommitVerf);
Nfs3Utils.WriteChannel(channel, response.Serialize(new XDR(), xid, new VerifierNone
()), xid);
return;
}
if (Log.IsDebugEnabled())
{
Log.Debug("Opened stream for appending file: " + fileHandle.GetFileId());
}
}
// Add write into the async job queue
openFileCtx.ReceivedNewWrite(dfsClient, request, channel, xid, asyncDataService,
iug);
return;
}
/// <summary>Tests all FsEditLogOps that are converted to inotify events.</summary>
/// <exception cref="System.IO.IOException"/>
/// <exception cref="Sharpen.URISyntaxException"/>
/// <exception cref="System.Exception"/>
/// <exception cref="Org.Apache.Hadoop.Hdfs.Inotify.MissingEventsException"/>
public virtual void TestBasic()
{
Configuration conf = new HdfsConfiguration();
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, BlockSize);
conf.SetBoolean(DFSConfigKeys.DfsNamenodeAclsEnabledKey, true);
// so that we can get an atime change
conf.SetLong(DFSConfigKeys.DfsNamenodeAccesstimePrecisionKey, 1);
MiniQJMHACluster.Builder builder = new MiniQJMHACluster.Builder(conf);
builder.GetDfsBuilder().NumDataNodes(2);
MiniQJMHACluster cluster = builder.Build();
try
{
cluster.GetDfsCluster().WaitActive();
cluster.GetDfsCluster().TransitionToActive(0);
DFSClient client = new DFSClient(cluster.GetDfsCluster().GetNameNode(0).GetNameNodeAddress
(), conf);
FileSystem fs = cluster.GetDfsCluster().GetFileSystem(0);
DFSTestUtil.CreateFile(fs, new Path("/file"), BlockSize, (short)1, 0L);
DFSTestUtil.CreateFile(fs, new Path("/file3"), BlockSize, (short)1, 0L);
DFSTestUtil.CreateFile(fs, new Path("/file5"), BlockSize, (short)1, 0L);
DFSInotifyEventInputStream eis = client.GetInotifyEventStream();
client.Rename("/file", "/file4", null);
// RenameOp -> RenameEvent
client.Rename("/file4", "/file2");
// RenameOldOp -> RenameEvent
// DeleteOp, AddOp -> UnlinkEvent, CreateEvent
OutputStream os = client.Create("/file2", true, (short)2, BlockSize);
os.Write(new byte[BlockSize]);
os.Close();
// CloseOp -> CloseEvent
// AddOp -> AppendEvent
os = client.Append("/file2", BlockSize, EnumSet.Of(CreateFlag.Append), null, null
);
os.Write(new byte[BlockSize]);
os.Close();
// CloseOp -> CloseEvent
Sharpen.Thread.Sleep(10);
// so that the atime will get updated on the next line
client.Open("/file2").Read(new byte[1]);
// TimesOp -> MetadataUpdateEvent
// SetReplicationOp -> MetadataUpdateEvent
client.SetReplication("/file2", (short)1);
// ConcatDeleteOp -> AppendEvent, UnlinkEvent, CloseEvent
client.Concat("/file2", new string[] { "/file3" });
client.Delete("/file2", false);
// DeleteOp -> UnlinkEvent
client.Mkdirs("/dir", null, false);
// MkdirOp -> CreateEvent
// SetPermissionsOp -> MetadataUpdateEvent
client.SetPermission("/dir", FsPermission.ValueOf("-rw-rw-rw-"));
// SetOwnerOp -> MetadataUpdateEvent
client.SetOwner("/dir", "username", "groupname");
client.CreateSymlink("/dir", "/dir2", false);
// SymlinkOp -> CreateEvent
client.SetXAttr("/file5", "user.field", Sharpen.Runtime.GetBytesForString("value"
), EnumSet.Of(XAttrSetFlag.Create));
// SetXAttrOp -> MetadataUpdateEvent
// RemoveXAttrOp -> MetadataUpdateEvent
client.RemoveXAttr("/file5", "user.field");
// SetAclOp -> MetadataUpdateEvent
client.SetAcl("/file5", AclEntry.ParseAclSpec("user::rwx,user:foo:rw-,group::r--,other::---"
, true));
client.RemoveAcl("/file5");
// SetAclOp -> MetadataUpdateEvent
client.Rename("/file5", "/dir");
// RenameOldOp -> RenameEvent
EventBatch batch = null;
// RenameOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
long txid = batch.GetTxid();
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Rename);
Event.RenameEvent re = (Event.RenameEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.AreEqual("/file4", re.GetDstPath());
NUnit.Framework.Assert.AreEqual("/file", re.GetSrcPath());
NUnit.Framework.Assert.IsTrue(re.GetTimestamp() > 0);
long eventsBehind = eis.GetTxidsBehindEstimate();
// RenameOldOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Rename);
Event.RenameEvent re2 = (Event.RenameEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(re2.GetDstPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(re2.GetSrcPath().Equals("/file4"));
NUnit.Framework.Assert.IsTrue(re.GetTimestamp() > 0);
// AddOp with overwrite
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Create);
Event.CreateEvent ce = (Event.CreateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(ce.GetiNodeType() == Event.CreateEvent.INodeType.File
);
NUnit.Framework.Assert.IsTrue(ce.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(ce.GetCtime() > 0);
NUnit.Framework.Assert.IsTrue(ce.GetReplication() > 0);
NUnit.Framework.Assert.IsTrue(ce.GetSymlinkTarget() == null);
NUnit.Framework.Assert.IsTrue(ce.GetOverwrite());
NUnit.Framework.Assert.AreEqual(BlockSize, ce.GetDefaultBlockSize());
// CloseOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Close);
Event.CloseEvent ce2 = (Event.CloseEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(ce2.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(ce2.GetFileSize() > 0);
NUnit.Framework.Assert.IsTrue(ce2.GetTimestamp() > 0);
// AppendOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Append);
Event.AppendEvent append2 = (Event.AppendEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.AreEqual("/file2", append2.GetPath());
NUnit.Framework.Assert.IsFalse(append2.ToNewBlock());
// CloseOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Close);
NUnit.Framework.Assert.IsTrue(((Event.CloseEvent)batch.GetEvents()[0]).GetPath().
Equals("/file2"));
// TimesOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(mue.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Times);
// SetReplicationOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue2 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue2.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(mue2.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Replication);
NUnit.Framework.Assert.IsTrue(mue2.GetReplication() == 1);
// ConcatDeleteOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(3, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Append);
NUnit.Framework.Assert.IsTrue(((Event.AppendEvent)batch.GetEvents()[0]).GetPath()
.Equals("/file2"));
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[1].GetEventType() == Event.EventType
.Unlink);
Event.UnlinkEvent ue2 = (Event.UnlinkEvent)batch.GetEvents()[1];
NUnit.Framework.Assert.IsTrue(ue2.GetPath().Equals("/file3"));
NUnit.Framework.Assert.IsTrue(ue2.GetTimestamp() > 0);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[2].GetEventType() == Event.EventType
.Close);
Event.CloseEvent ce3 = (Event.CloseEvent)batch.GetEvents()[2];
NUnit.Framework.Assert.IsTrue(ce3.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(ce3.GetTimestamp() > 0);
// DeleteOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Unlink);
Event.UnlinkEvent ue = (Event.UnlinkEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(ue.GetPath().Equals("/file2"));
NUnit.Framework.Assert.IsTrue(ue.GetTimestamp() > 0);
// MkdirOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Create);
Event.CreateEvent ce4 = (Event.CreateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(ce4.GetiNodeType() == Event.CreateEvent.INodeType.Directory
);
NUnit.Framework.Assert.IsTrue(ce4.GetPath().Equals("/dir"));
NUnit.Framework.Assert.IsTrue(ce4.GetCtime() > 0);
NUnit.Framework.Assert.IsTrue(ce4.GetReplication() == 0);
NUnit.Framework.Assert.IsTrue(ce4.GetSymlinkTarget() == null);
// SetPermissionsOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue3 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue3.GetPath().Equals("/dir"));
NUnit.Framework.Assert.IsTrue(mue3.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Perms);
NUnit.Framework.Assert.IsTrue(mue3.GetPerms().ToString().Contains("rw-rw-rw-"));
// SetOwnerOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue4 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue4.GetPath().Equals("/dir"));
NUnit.Framework.Assert.IsTrue(mue4.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Owner);
NUnit.Framework.Assert.IsTrue(mue4.GetOwnerName().Equals("username"));
NUnit.Framework.Assert.IsTrue(mue4.GetGroupName().Equals("groupname"));
// SymlinkOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Create);
Event.CreateEvent ce5 = (Event.CreateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(ce5.GetiNodeType() == Event.CreateEvent.INodeType.Symlink
);
NUnit.Framework.Assert.IsTrue(ce5.GetPath().Equals("/dir2"));
NUnit.Framework.Assert.IsTrue(ce5.GetCtime() > 0);
NUnit.Framework.Assert.IsTrue(ce5.GetReplication() == 0);
NUnit.Framework.Assert.IsTrue(ce5.GetSymlinkTarget().Equals("/dir"));
// SetXAttrOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue5 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue5.GetPath().Equals("/file5"));
NUnit.Framework.Assert.IsTrue(mue5.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Xattrs);
NUnit.Framework.Assert.IsTrue(mue5.GetxAttrs().Count == 1);
NUnit.Framework.Assert.IsTrue(mue5.GetxAttrs()[0].GetName().Contains("field"));
NUnit.Framework.Assert.IsTrue(!mue5.IsxAttrsRemoved());
// RemoveXAttrOp
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue6 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue6.GetPath().Equals("/file5"));
NUnit.Framework.Assert.IsTrue(mue6.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Xattrs);
NUnit.Framework.Assert.IsTrue(mue6.GetxAttrs().Count == 1);
NUnit.Framework.Assert.IsTrue(mue6.GetxAttrs()[0].GetName().Contains("field"));
NUnit.Framework.Assert.IsTrue(mue6.IsxAttrsRemoved());
// SetAclOp (1)
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue7 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue7.GetPath().Equals("/file5"));
NUnit.Framework.Assert.IsTrue(mue7.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Acls);
NUnit.Framework.Assert.IsTrue(mue7.GetAcls().Contains(AclEntry.ParseAclEntry("user::rwx"
, true)));
// SetAclOp (2)
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Metadata);
Event.MetadataUpdateEvent mue8 = (Event.MetadataUpdateEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(mue8.GetPath().Equals("/file5"));
NUnit.Framework.Assert.IsTrue(mue8.GetMetadataType() == Event.MetadataUpdateEvent.MetadataType
.Acls);
NUnit.Framework.Assert.IsTrue(mue8.GetAcls() == null);
// RenameOp (2)
batch = WaitForNextEvents(eis);
NUnit.Framework.Assert.AreEqual(1, batch.GetEvents().Length);
txid = CheckTxid(batch, txid);
NUnit.Framework.Assert.IsTrue(batch.GetEvents()[0].GetEventType() == Event.EventType
.Rename);
Event.RenameEvent re3 = (Event.RenameEvent)batch.GetEvents()[0];
NUnit.Framework.Assert.IsTrue(re3.GetDstPath().Equals("/dir/file5"));
NUnit.Framework.Assert.IsTrue(re3.GetSrcPath().Equals("/file5"));
NUnit.Framework.Assert.IsTrue(re.GetTimestamp() > 0);
// Returns null when there are no further events
NUnit.Framework.Assert.IsTrue(eis.Poll() == null);
// make sure the estimate hasn't changed since the above assertion
// tells us that we are fully caught up to the current namesystem state
// and we should not have been behind at all when eventsBehind was set
// either, since there were few enough events that they should have all
// been read to the client during the first poll() call
NUnit.Framework.Assert.IsTrue(eis.GetTxidsBehindEstimate() == eventsBehind);
}
finally
{
cluster.Shutdown();
}
}