You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-commits@hadoop.apache.org by bo...@apache.org on 2012/04/17 17:04:21 UTC
svn commit: r1327127 - in
/hadoop/common/trunk/hadoop-common-project/hadoop-common: ./
src/main/java/org/apache/hadoop/conf/ src/main/java/org/apache/hadoop/ipc/
src/test/java/org/apache/hadoop/conf/ src/test/java/org/apache/hadoop/ipc/
Author: bobby
Date: Tue Apr 17 15:04:20 2012
New Revision: 1327127
URL: http://svn.apache.org/viewvc?rev=1327127&view=rev
Log:
HADOOP-8227. Allow RPC to limit ephemeral port range. (bobby)
Added:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt Tue Apr 17 15:04:20 2012
@@ -449,6 +449,8 @@ Release 0.23.3 - UNRELEASED
HADOOP-8286. Simplify getting a socket address from conf (Daryn Sharp via
bobby)
+ HADOOP-8227. Allow RPC to limit ephemeral port range. (bobby)
+
Release 0.23.2 - UNRELEASED
INCOMPATIBLE CHANGES
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java Tue Apr 17 15:04:20 2012
@@ -964,11 +964,57 @@ public class Configuration implements It
* bound may be omitted meaning all values up to or over. So the string
* above means 2, 3, 5, and 7, 8, 9, ...
*/
- public static class IntegerRanges {
+ public static class IntegerRanges implements Iterable<Integer>{
private static class Range {
int start;
int end;
}
+
+ private static class RangeNumberIterator implements Iterator<Integer> {
+ Iterator<Range> internal;
+ int at;
+ int end;
+
+ public RangeNumberIterator(List<Range> ranges) {
+ if (ranges != null) {
+ internal = ranges.iterator();
+ }
+ at = -1;
+ end = -2;
+ }
+
+ @Override
+ public boolean hasNext() {
+ if (at <= end) {
+ return true;
+ } else if (internal != null){
+ return internal.hasNext();
+ }
+ return false;
+ }
+
+ @Override
+ public Integer next() {
+ if (at <= end) {
+ at++;
+ return at - 1;
+ } else if (internal != null){
+ Range found = internal.next();
+ if (found != null) {
+ at = found.start;
+ end = found.end;
+ at++;
+ return at - 1;
+ }
+ }
+ return null;
+ }
+
+ @Override
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+ };
List<Range> ranges = new ArrayList<Range>();
@@ -1027,6 +1073,13 @@ public class Configuration implements It
return false;
}
+ /**
+ * @return true if there are no values in this range, else false.
+ */
+ public boolean isEmpty() {
+ return ranges == null || ranges.isEmpty();
+ }
+
@Override
public String toString() {
StringBuilder result = new StringBuilder();
@@ -1043,6 +1096,12 @@ public class Configuration implements It
}
return result.toString();
}
+
+ @Override
+ public Iterator<Integer> iterator() {
+ return new RangeNumberIterator(ranges);
+ }
+
}
/**
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java Tue Apr 17 15:04:20 2012
@@ -319,10 +319,12 @@ public class ProtobufRpcEngine implement
public RPC.Server getServer(Class<?> protocol, Object protocolImpl,
String bindAddress, int port, int numHandlers, int numReaders,
int queueSizePerHandler, boolean verbose, Configuration conf,
- SecretManager<? extends TokenIdentifier> secretManager)
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
throws IOException {
return new Server(protocol, protocolImpl, conf, bindAddress, port,
- numHandlers, numReaders, queueSizePerHandler, verbose, secretManager);
+ numHandlers, numReaders, queueSizePerHandler, verbose, secretManager,
+ portRangeConfig);
}
public static class Server extends RPC.Server {
@@ -336,15 +338,18 @@ public class ProtobufRpcEngine implement
* @param port the port to listen for connections on
* @param numHandlers the number of method handler threads to run
* @param verbose whether each call should be logged
+ * @param portRangeConfig A config parameter that can be used to restrict
+ * the range of ports used when port is 0 (an ephemeral port)
*/
public Server(Class<?> protocolClass, Object protocolImpl,
Configuration conf, String bindAddress, int port, int numHandlers,
int numReaders, int queueSizePerHandler, boolean verbose,
- SecretManager<? extends TokenIdentifier> secretManager)
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
throws IOException {
super(bindAddress, port, null, numHandlers,
numReaders, queueSizePerHandler, conf, classNameBase(protocolImpl
- .getClass().getName()), secretManager);
+ .getClass().getName()), secretManager, portRangeConfig);
this.verbose = verbose;
registerProtocolAndImpl(RpcKind.RPC_PROTOCOL_BUFFER, protocolClass,
protocolImpl);
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java Tue Apr 17 15:04:20 2012
@@ -654,7 +654,8 @@ public class RPC {
final boolean verbose, Configuration conf)
throws IOException {
return getServer(instance.getClass(), // use impl class for protocol
- instance, bindAddress, port, numHandlers, false, conf, null);
+ instance, bindAddress, port, numHandlers, false, conf, null,
+ null);
}
/** Construct a server for a protocol implementation instance. */
@@ -662,7 +663,8 @@ public class RPC {
Object instance, String bindAddress,
int port, Configuration conf)
throws IOException {
- return getServer(protocol, instance, bindAddress, port, 1, false, conf, null);
+ return getServer(protocol, instance, bindAddress, port, 1, false, conf, null,
+ null);
}
/** Construct a server for a protocol implementation instance.
@@ -676,7 +678,7 @@ public class RPC {
throws IOException {
return getServer(protocol, instance, bindAddress, port, numHandlers, verbose,
- conf, null);
+ conf, null, null);
}
/** Construct a server for a protocol implementation instance. */
@@ -686,10 +688,20 @@ public class RPC {
boolean verbose, Configuration conf,
SecretManager<? extends TokenIdentifier> secretManager)
throws IOException {
-
+ return getServer(protocol, instance, bindAddress, port, numHandlers, verbose,
+ conf, secretManager, null);
+ }
+
+ public static Server getServer(Class<?> protocol,
+ Object instance, String bindAddress, int port,
+ int numHandlers,
+ boolean verbose, Configuration conf,
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
+ throws IOException {
return getProtocolEngine(protocol, conf)
.getServer(protocol, instance, bindAddress, port, numHandlers, -1, -1,
- verbose, conf, secretManager);
+ verbose, conf, secretManager, portRangeConfig);
}
/** Construct a server for a protocol implementation instance. */
@@ -704,7 +716,8 @@ public class RPC {
return getProtocolEngine(protocol, conf)
.getServer(protocol, instance, bindAddress, port, numHandlers,
- numReaders, queueSizePerHandler, verbose, conf, secretManager);
+ numReaders, queueSizePerHandler, verbose, conf, secretManager,
+ null);
}
/** An RPC Server. */
@@ -855,9 +868,10 @@ public class RPC {
Class<? extends Writable> paramClass, int handlerCount,
int numReaders, int queueSizePerHandler,
Configuration conf, String serverName,
- SecretManager<? extends TokenIdentifier> secretManager) throws IOException {
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig) throws IOException {
super(bindAddress, port, paramClass, handlerCount, numReaders, queueSizePerHandler,
- conf, serverName, secretManager);
+ conf, serverName, secretManager, portRangeConfig);
initProtocolMetaInfo(conf);
}
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java Tue Apr 17 15:04:20 2012
@@ -47,12 +47,30 @@ public interface RpcEngine {
UserGroupInformation ticket, Configuration conf)
throws IOException, InterruptedException;
- /** Construct a server for a protocol implementation instance. */
+ /**
+ * Construct a server for a protocol implementation instance.
+ *
+ * @param protocol the class of protocol to use
+ * @param instance the instance of protocol whose methods will be called
+ * @param conf the configuration to use
+ * @param bindAddress the address to bind on to listen for connection
+ * @param port the port to listen for connections on
+ * @param numHandlers the number of method handler threads to run
+ * @param numReaders the number of reader threads to run
+ * @param queueSizePerHandler the size of the queue per hander thread
+ * @param verbose whether each call should be logged
+ * @param secretManager The secret manager to use to validate incoming requests.
+ * @param portRangeConfig A config parameter that can be used to restrict
+ * the range of ports used when port is 0 (an ephemeral port)
+ * @return The Server instance
+ * @throws IOException on any error
+ */
RPC.Server getServer(Class<?> protocol, Object instance, String bindAddress,
int port, int numHandlers, int numReaders,
int queueSizePerHandler, boolean verbose,
Configuration conf,
- SecretManager<? extends TokenIdentifier> secretManager
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig
) throws IOException;
/**
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java Tue Apr 17 15:04:20 2012
@@ -63,6 +63,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.conf.Configuration.IntegerRanges;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.io.BytesWritable;
@@ -291,6 +292,7 @@ public abstract class Server {
protected RpcDetailedMetrics rpcDetailedMetrics;
private Configuration conf;
+ private String portRangeConfig = null;
private SecretManager<TokenIdentifier> secretManager;
private ServiceAuthorizationManager serviceAuthorizationManager = new ServiceAuthorizationManager();
@@ -323,8 +325,33 @@ public abstract class Server {
*/
public static void bind(ServerSocket socket, InetSocketAddress address,
int backlog) throws IOException {
+ bind(socket, address, backlog, null, null);
+ }
+
+ public static void bind(ServerSocket socket, InetSocketAddress address,
+ int backlog, Configuration conf, String rangeConf) throws IOException {
try {
- socket.bind(address, backlog);
+ IntegerRanges range = null;
+ if (rangeConf != null) {
+ range = conf.getRange(rangeConf, "");
+ }
+ if (range == null || range.isEmpty() || (address.getPort() != 0)) {
+ socket.bind(address, backlog);
+ } else {
+ for (Integer port : range) {
+ if (socket.isBound()) break;
+ try {
+ InetSocketAddress temp = new InetSocketAddress(address.getAddress(),
+ port);
+ socket.bind(temp, backlog);
+ } catch(BindException e) {
+ //Ignored
+ }
+ }
+ if (!socket.isBound()) {
+ throw new BindException("Could not find a free port in "+range);
+ }
+ }
} catch (SocketException e) {
throw NetUtils.wrapException(null,
0,
@@ -424,7 +451,7 @@ public abstract class Server {
acceptChannel.configureBlocking(false);
// Bind the server socket to the local host and port
- bind(acceptChannel.socket(), address, backlogLength);
+ bind(acceptChannel.socket(), address, backlogLength, conf, portRangeConfig);
port = acceptChannel.socket().getLocalPort(); //Could be an ephemeral port
// create a selector;
selector= Selector.open();
@@ -1725,7 +1752,16 @@ public abstract class Server {
throws IOException
{
this(bindAddress, port, paramClass, handlerCount, -1, -1, conf, Integer
- .toString(port), null);
+ .toString(port), null, null);
+ }
+
+ protected Server(String bindAddress, int port,
+ Class<? extends Writable> rpcRequestClass, int handlerCount,
+ int numReaders, int queueSizePerHandler, Configuration conf,
+ String serverName, SecretManager<? extends TokenIdentifier> secretManager)
+ throws IOException {
+ this(bindAddress, port, rpcRequestClass, handlerCount, numReaders,
+ queueSizePerHandler, conf, serverName, secretManager, null);
}
/**
@@ -1745,10 +1781,12 @@ public abstract class Server {
protected Server(String bindAddress, int port,
Class<? extends Writable> rpcRequestClass, int handlerCount,
int numReaders, int queueSizePerHandler, Configuration conf,
- String serverName, SecretManager<? extends TokenIdentifier> secretManager)
+ String serverName, SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
throws IOException {
this.bindAddress = bindAddress;
this.conf = conf;
+ this.portRangeConfig = portRangeConfig;
this.port = port;
this.rpcRequestClass = rpcRequestClass;
this.handlerCount = handlerCount;
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java Tue Apr 17 15:04:20 2012
@@ -299,16 +299,19 @@ public class WritableRpcEngine implement
}
}
- /** Construct a server for a protocol implementation instance listening on a
+ /* Construct a server for a protocol implementation instance listening on a
* port and address. */
+ @Override
public RPC.Server getServer(Class<?> protocolClass,
Object protocolImpl, String bindAddress, int port,
int numHandlers, int numReaders, int queueSizePerHandler,
boolean verbose, Configuration conf,
- SecretManager<? extends TokenIdentifier> secretManager)
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
throws IOException {
return new Server(protocolClass, protocolImpl, conf, bindAddress, port,
- numHandlers, numReaders, queueSizePerHandler, verbose, secretManager);
+ numHandlers, numReaders, queueSizePerHandler, verbose, secretManager,
+ portRangeConfig);
}
@@ -341,7 +344,7 @@ public class WritableRpcEngine implement
Configuration conf, String bindAddress, int port)
throws IOException {
this(protocolClass, protocolImpl, conf, bindAddress, port, 1, -1, -1,
- false, null);
+ false, null, null);
}
/**
@@ -363,7 +366,7 @@ public class WritableRpcEngine implement
throws IOException {
this(null, protocolImpl, conf, bindAddress, port,
numHandlers, numReaders, queueSizePerHandler, verbose,
- secretManager);
+ secretManager, null);
}
@@ -381,11 +384,13 @@ public class WritableRpcEngine implement
public Server(Class<?> protocolClass, Object protocolImpl,
Configuration conf, String bindAddress, int port,
int numHandlers, int numReaders, int queueSizePerHandler,
- boolean verbose, SecretManager<? extends TokenIdentifier> secretManager)
+ boolean verbose, SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig)
throws IOException {
super(bindAddress, port, null, numHandlers, numReaders,
queueSizePerHandler, conf,
- classNameBase(protocolImpl.getClass().getName()), secretManager);
+ classNameBase(protocolImpl.getClass().getName()), secretManager,
+ portRangeConfig);
this.verbose = verbose;
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java Tue Apr 17 15:04:20 2012
@@ -25,16 +25,20 @@ import java.io.IOException;
import java.io.StringWriter;
import java.net.InetSocketAddress;
import java.util.ArrayList;
+import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
+import java.util.HashSet;
import java.util.Map;
import java.util.Random;
+import java.util.Set;
import java.util.regex.Pattern;
import junit.framework.TestCase;
import static org.junit.Assert.assertArrayEquals;
import org.apache.commons.lang.StringUtils;
+import org.apache.hadoop.conf.Configuration.IntegerRanges;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.net.NetUtils;
import org.codehaus.jackson.map.ObjectMapper;
@@ -362,6 +366,35 @@ public class TestConfiguration extends T
assertEquals(true, range.isIncluded(34));
assertEquals(true, range.isIncluded(100000000));
}
+
+ public void testGetRangeIterator() throws Exception {
+ Configuration config = new Configuration(false);
+ IntegerRanges ranges = config.getRange("Test", "");
+ assertFalse("Empty range has values", ranges.iterator().hasNext());
+ ranges = config.getRange("Test", "5");
+ Set<Integer> expected = new HashSet<Integer>(Arrays.asList(5));
+ Set<Integer> found = new HashSet<Integer>();
+ for(Integer i: ranges) {
+ found.add(i);
+ }
+ assertEquals(expected, found);
+
+ ranges = config.getRange("Test", "5-10,13-14");
+ expected = new HashSet<Integer>(Arrays.asList(5,6,7,8,9,10,13,14));
+ found = new HashSet<Integer>();
+ for(Integer i: ranges) {
+ found.add(i);
+ }
+ assertEquals(expected, found);
+
+ ranges = config.getRange("Test", "8-12, 5- 7");
+ expected = new HashSet<Integer>(Arrays.asList(5,6,7,8,9,10,11,12));
+ found = new HashSet<Integer>();
+ for(Integer i: ranges) {
+ found.add(i);
+ }
+ assertEquals(expected, found);
+ }
public void testHexValues() throws IOException{
out=new BufferedWriter(new FileWriter(CONFIG));
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java?rev=1327127&r1=1327126&r2=1327127&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java Tue Apr 17 15:04:20 2012
@@ -260,7 +260,8 @@ public class TestRPC {
public org.apache.hadoop.ipc.RPC.Server getServer(Class<?> protocol,
Object instance, String bindAddress, int port, int numHandlers,
int numReaders, int queueSizePerHandler, boolean verbose, Configuration conf,
- SecretManager<? extends TokenIdentifier> secretManager) throws IOException {
+ SecretManager<? extends TokenIdentifier> secretManager,
+ String portRangeConfig) throws IOException {
return null;
}
Added: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java?rev=1327127&view=auto
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java (added)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java Tue Apr 17 15:04:20 2012
@@ -0,0 +1,118 @@
+/**
+ * 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
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.ipc;
+
+import static org.junit.Assert.*;
+
+import java.net.BindException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+
+import org.apache.hadoop.conf.Configuration;
+import org.junit.Test;
+
+/**
+ * This is intended to be a set of unit tests for the
+ * org.apache.hadoop.ipc.Server class.
+ */
+public class TestServer {
+
+ @Test
+ public void testBind() throws Exception {
+ Configuration conf = new Configuration();
+ ServerSocket socket = new ServerSocket();
+ InetSocketAddress address = new InetSocketAddress("0.0.0.0",0);
+ socket.bind(address);
+ try {
+ int min = socket.getLocalPort();
+ int max = min + 100;
+ conf.set("TestRange", min+"-"+max);
+
+
+ ServerSocket socket2 = new ServerSocket();
+ InetSocketAddress address2 = new InetSocketAddress("0.0.0.0", 0);
+ Server.bind(socket2, address2, 10, conf, "TestRange");
+ try {
+ assertTrue(socket2.isBound());
+ assertTrue(socket2.getLocalPort() > min);
+ assertTrue(socket2.getLocalPort() <= max);
+ } finally {
+ socket2.close();
+ }
+ } finally {
+ socket.close();
+ }
+ }
+
+ @Test
+ public void testBindSimple() throws Exception {
+ ServerSocket socket = new ServerSocket();
+ InetSocketAddress address = new InetSocketAddress("0.0.0.0",0);
+ Server.bind(socket, address, 10);
+ try {
+ assertTrue(socket.isBound());
+ } finally {
+ socket.close();
+ }
+ }
+
+ @Test
+ public void testEmptyConfig() throws Exception {
+ Configuration conf = new Configuration();
+ conf.set("TestRange", "");
+
+
+ ServerSocket socket = new ServerSocket();
+ InetSocketAddress address = new InetSocketAddress("0.0.0.0", 0);
+ try {
+ Server.bind(socket, address, 10, conf, "TestRange");
+ assertTrue(socket.isBound());
+ } finally {
+ socket.close();
+ }
+ }
+
+
+ @Test
+ public void testBindError() throws Exception {
+ Configuration conf = new Configuration();
+ ServerSocket socket = new ServerSocket();
+ InetSocketAddress address = new InetSocketAddress("0.0.0.0",0);
+ socket.bind(address);
+ try {
+ int min = socket.getLocalPort();
+ conf.set("TestRange", min+"-"+min);
+
+
+ ServerSocket socket2 = new ServerSocket();
+ InetSocketAddress address2 = new InetSocketAddress("0.0.0.0", 0);
+ boolean caught = false;
+ try {
+ Server.bind(socket2, address2, 10, conf, "TestRange");
+ } catch (BindException e) {
+ caught = true;
+ } finally {
+ socket2.close();
+ }
+ assertTrue("Failed to catch the expected bind exception",caught);
+ } finally {
+ socket.close();
+ }
+ }
+}