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HADOOP-6132. RPC client create an extra connection because of incorrect 

key for connection cache. (Kan Zhang via rangadi)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@797248 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Raghu Angadi 2009-07-23 22:28:26 +00:00
parent 8296413d49
commit 53c127013c
2 changed files with 20 additions and 9 deletions
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3
CHANGES.txt
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@ -888,6 +888,9 @@ Trunk (unreleased changes)
HADOOP-6138. Eliminate the depracate warnings introduced by H-5438.
(He Yongqiang via szetszwo)
HADOOP-6132. RPC client create an extra connection because of incorrect
key for connection cache. (Kan Zhang via rangadi)
Release 0.20.1 - Unreleased
INCOMPATIBLE CHANGES

24
src/java/org/apache/hadoop/ipc/RPC.java
View File

@ -197,13 +197,16 @@ public class RPC {
private static ClientCache CLIENTS=new ClientCache();
private static class Invoker implements InvocationHandler {
private Class<? extends VersionedProtocol> protocol;
private InetSocketAddress address;
private UserGroupInformation ticket;
private Client client;
private boolean isClosed = false;
public Invoker(InetSocketAddress address, UserGroupInformation ticket,
public Invoker(Class<? extends VersionedProtocol> protocol,
InetSocketAddress address, UserGroupInformation ticket,
Configuration conf, SocketFactory factory) {
this.protocol = protocol;
this.address = address;
this.ticket = ticket;
this.client = CLIENTS.getClient(conf, factory);
@ -219,7 +222,7 @@ public class RPC {
ObjectWritable value = (ObjectWritable)
client.call(new Invocation(method, args), address,
method.getDeclaringClass(), ticket);
protocol, ticket);
if (logDebug) {
long callTime = System.currentTimeMillis() - startTime;
LOG.debug("Call: " + method.getName() + " " + callTime);
@ -283,7 +286,8 @@ public class RPC {
}
}
public static VersionedProtocol waitForProxy(Class protocol,
public static VersionedProtocol waitForProxy(
Class<? extends VersionedProtocol> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf
@ -301,7 +305,8 @@ public class RPC {
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
static VersionedProtocol waitForProxy(Class protocol,
static VersionedProtocol waitForProxy(
Class<? extends VersionedProtocol> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
@ -334,7 +339,8 @@ public class RPC {
}
/** Construct a client-side proxy object that implements the named protocol,
* talking to a server at the named address. */
public static VersionedProtocol getProxy(Class<?> protocol,
public static VersionedProtocol getProxy(
Class<? extends VersionedProtocol> protocol,
long clientVersion, InetSocketAddress addr, Configuration conf,
SocketFactory factory) throws IOException {
UserGroupInformation ugi = null;
@ -348,14 +354,15 @@ public class RPC {
/** Construct a client-side proxy object that implements the named protocol,
* talking to a server at the named address. */
public static VersionedProtocol getProxy(Class<?> protocol,
public static VersionedProtocol getProxy(
Class<? extends VersionedProtocol> protocol,
long clientVersion, InetSocketAddress addr, UserGroupInformation ticket,
Configuration conf, SocketFactory factory) throws IOException {
VersionedProtocol proxy =
(VersionedProtocol) Proxy.newProxyInstance(
protocol.getClassLoader(), new Class[] { protocol },
new Invoker(addr, ticket, conf, factory));
new Invoker(protocol, addr, ticket, conf, factory));
long serverVersion = proxy.getProtocolVersion(protocol.getName(),
clientVersion);
if (serverVersion == clientVersion) {
@ -376,7 +383,8 @@ public class RPC {
* @return a proxy instance
* @throws IOException
*/
public static VersionedProtocol getProxy(Class<?> protocol,
public static VersionedProtocol getProxy(
Class<? extends VersionedProtocol> protocol,
long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {