HDFS-12151. Hadoop 2 clients cannot writeBlock to Hadoop 3 DataNodes.
This commit is contained in:
parent
72eba25e09
commit
7774759830
@ -811,20 +811,25 @@ public void writeBlock(final ExtendedBlock block,
|
||||
smallBufferSize));
|
||||
mirrorIn = new DataInputStream(unbufMirrorIn);
|
||||
|
||||
String targetStorageId = null;
|
||||
if (targetStorageIds.length > 0) {
|
||||
// Older clients may not have provided any targetStorageIds
|
||||
targetStorageId = targetStorageIds[0];
|
||||
}
|
||||
if (targetPinnings != null && targetPinnings.length > 0) {
|
||||
new Sender(mirrorOut).writeBlock(originalBlock, targetStorageTypes[0],
|
||||
blockToken, clientname, targets, targetStorageTypes,
|
||||
srcDataNode, stage, pipelineSize, minBytesRcvd, maxBytesRcvd,
|
||||
latestGenerationStamp, requestedChecksum, cachingStrategy,
|
||||
allowLazyPersist, targetPinnings[0], targetPinnings,
|
||||
targetStorageIds[0], targetStorageIds);
|
||||
targetStorageId, targetStorageIds);
|
||||
} else {
|
||||
new Sender(mirrorOut).writeBlock(originalBlock, targetStorageTypes[0],
|
||||
blockToken, clientname, targets, targetStorageTypes,
|
||||
srcDataNode, stage, pipelineSize, minBytesRcvd, maxBytesRcvd,
|
||||
latestGenerationStamp, requestedChecksum, cachingStrategy,
|
||||
allowLazyPersist, false, targetPinnings,
|
||||
targetStorageIds[0], targetStorageIds);
|
||||
targetStorageId, targetStorageIds);
|
||||
}
|
||||
|
||||
mirrorOut.flush();
|
||||
|
@ -0,0 +1,212 @@
|
||||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
* <p/>
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* <p/>
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.hadoop.hdfs.server.datanode;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.StorageType;
|
||||
import org.apache.hadoop.hdfs.net.*;
|
||||
import org.apache.hadoop.hdfs.protocol.*;
|
||||
import org.apache.hadoop.hdfs.protocol.datatransfer.*;
|
||||
import org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataEncryptionKeyFactory;
|
||||
import org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient;
|
||||
import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi;
|
||||
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
|
||||
import org.apache.hadoop.io.Text;
|
||||
import org.apache.hadoop.net.ServerSocketUtil;
|
||||
import org.apache.hadoop.security.token.Token;
|
||||
import org.apache.hadoop.util.DataChecksum;
|
||||
|
||||
import org.junit.Rule;
|
||||
import org.junit.Test;
|
||||
import org.junit.rules.Timeout;
|
||||
import org.mockito.ArgumentCaptor;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.DataInputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.io.OutputStream;
|
||||
import java.io.PrintStream;
|
||||
import java.net.ServerSocket;
|
||||
import java.net.Socket;
|
||||
|
||||
import static org.junit.Assert.fail;
|
||||
import static org.mockito.Mockito.*;
|
||||
|
||||
/**
|
||||
* Mock-based unit test to verify that DataXceiver does not fail when no
|
||||
* storageId or targetStorageTypes are passed - as is the case in Hadoop 2.x.
|
||||
*/
|
||||
public class TestDataXceiverBackwardsCompat {
|
||||
@Rule
|
||||
public Timeout timeout = new Timeout(60000);
|
||||
|
||||
private void failWithException(String message, Exception exception) {
|
||||
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
|
||||
exception.printStackTrace(new PrintStream(buffer));
|
||||
String stacktrace = buffer.toString();
|
||||
|
||||
fail(message + ": " + exception + "; " + exception.getMessage() + "\n" +
|
||||
stacktrace);
|
||||
}
|
||||
|
||||
/**
|
||||
* Used for mocking DataNode. Mockito does not provide a way to mock
|
||||
* properties (like data or saslClient) so we have to manually set up mocks
|
||||
* of those properties inside our own class.
|
||||
*/
|
||||
public class NullDataNode extends DataNode {
|
||||
public NullDataNode(Configuration conf, OutputStream out, int port) throws
|
||||
Exception {
|
||||
super(conf);
|
||||
data = (FsDatasetSpi<FsVolumeSpi>)mock(FsDatasetSpi.class);
|
||||
saslClient = mock(SaslDataTransferClient.class);
|
||||
|
||||
IOStreamPair pair = new IOStreamPair(null, out);
|
||||
|
||||
doReturn(pair).when(saslClient).socketSend(
|
||||
any(Socket.class), any(OutputStream.class), any(InputStream.class),
|
||||
any(DataEncryptionKeyFactory.class), any(Token.class),
|
||||
any(DatanodeID.class));
|
||||
doReturn(mock(ReplicaHandler.class)).when(data).createTemporary(
|
||||
any(StorageType.class), any(String.class), any(ExtendedBlock.class),
|
||||
anyBoolean());
|
||||
|
||||
new Thread(new NullServer(port)).start();
|
||||
}
|
||||
|
||||
@Override
|
||||
public DatanodeRegistration getDNRegistrationForBP(String bpid)
|
||||
throws IOException {
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Socket newSocket() throws IOException {
|
||||
return new Socket();
|
||||
}
|
||||
|
||||
/**
|
||||
* Class for accepting incoming an incoming connection. Does not read
|
||||
* data or repeat in any way: simply allows a single client to connect to
|
||||
* a local URL.
|
||||
*/
|
||||
private class NullServer implements Runnable {
|
||||
|
||||
private ServerSocket serverSocket;
|
||||
|
||||
NullServer(int port) throws IOException {
|
||||
serverSocket = new ServerSocket(port);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
try {
|
||||
serverSocket.accept();
|
||||
serverSocket.close();
|
||||
LOG.info("Client connection accepted by NullServer");
|
||||
} catch (Exception e) {
|
||||
LOG.info("Exception in NullServer: " + e + "; " + e.getMessage());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testBackwardsCompat() throws Exception {
|
||||
Peer peer = mock(Peer.class);
|
||||
doReturn("").when(peer).getRemoteAddressString();
|
||||
Configuration conf = new Configuration();
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
int port = ServerSocketUtil.getPort(1234, 10);
|
||||
DataNode dataNode = new NullDataNode(conf, out, port);
|
||||
DataXceiverServer server = new DataXceiverServer(
|
||||
mock(PeerServer.class), conf, dataNode);
|
||||
DataXceiver xceiver = spy(DataXceiver.create(peer, dataNode, server));
|
||||
|
||||
BlockReceiver mockBlockReceiver = mock(BlockReceiver.class);
|
||||
doReturn(mock(Replica.class)).when(mockBlockReceiver).getReplica();
|
||||
|
||||
DatanodeInfo[] targets = {mock(DatanodeInfo.class)};
|
||||
doReturn("localhost:" + port).when(targets[0]).getXferAddr(true);
|
||||
doReturn("127.0.0.1:" + port).when(targets[0]).getXferAddr(false);
|
||||
StorageType[] storageTypes = {StorageType.RAM_DISK};
|
||||
|
||||
doReturn(mockBlockReceiver).when(xceiver).getBlockReceiver(
|
||||
any(ExtendedBlock.class), any(StorageType.class),
|
||||
any(DataInputStream.class), anyString(), anyString(),
|
||||
any(BlockConstructionStage.class), anyLong(), anyLong(), anyLong(),
|
||||
anyString(), any(DatanodeInfo.class), any(DataNode.class),
|
||||
any(DataChecksum.class), any(CachingStrategy.class),
|
||||
ArgumentCaptor.forClass(Boolean.class).capture(),
|
||||
anyBoolean(), any(String.class));
|
||||
|
||||
Token<BlockTokenIdentifier> token = (Token<BlockTokenIdentifier>)mock(
|
||||
Token.class);
|
||||
doReturn("".getBytes()).when(token).getIdentifier();
|
||||
doReturn("".getBytes()).when(token).getPassword();
|
||||
doReturn(new Text("")).when(token).getKind();
|
||||
doReturn(new Text("")).when(token).getService();
|
||||
|
||||
DataChecksum checksum = mock(DataChecksum.class);
|
||||
doReturn(DataChecksum.Type.NULL).when(checksum).getChecksumType();
|
||||
|
||||
DatanodeInfo datanodeInfo = mock(DatanodeInfo.class);
|
||||
doReturn("localhost").when(datanodeInfo).getHostName();
|
||||
doReturn("127.0.0.1").when(datanodeInfo).getIpAddr();
|
||||
doReturn(DatanodeInfo.AdminStates.NORMAL).when(datanodeInfo)
|
||||
.getAdminState();
|
||||
|
||||
Exception storedException = null;
|
||||
try {
|
||||
xceiver.writeBlock(
|
||||
new ExtendedBlock("Dummy-pool", 0L),
|
||||
StorageType.RAM_DISK,
|
||||
token,
|
||||
"Dummy-Client",
|
||||
targets,
|
||||
storageTypes,
|
||||
datanodeInfo,
|
||||
BlockConstructionStage.PIPELINE_SETUP_CREATE,
|
||||
0, 0, 0, 0,
|
||||
checksum,
|
||||
CachingStrategy.newDefaultStrategy(),
|
||||
false,
|
||||
false, new boolean[0], null, new String[0]);
|
||||
} catch (Exception e) {
|
||||
// Not enough things have been mocked for this to complete without
|
||||
// exceptions, but we want to make sure we can at least get as far as
|
||||
// sending data to the server with null values for storageId and
|
||||
// targetStorageTypes.
|
||||
storedException = e;
|
||||
}
|
||||
byte[] output = out.toByteArray();
|
||||
if (output.length == 0) {
|
||||
if (storedException == null) {
|
||||
failWithException("No output written, but no exception either (this " +
|
||||
"shouldn't happen", storedException);
|
||||
} else {
|
||||
failWithException("Exception occurred before anything was written",
|
||||
storedException);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user