Client (Solaris) remote call hangs 225sec if Server (Window7) is down.

Question

We are noticing the RMI Client remote call from Solaris machine hang of exactly 225 seconds if RMI Server on Windows7 machine is shutdown. RMI Server is shutdown for valid reasons. The expectation is, Client would throw a RemoteException immediately for futher processing. The Client hang for 225 minutes is causing performance issues. This has been consistently reproduced across multiple machines with Client on Solaris and Server on Windows 7. There are no 225 sec wait issues if server is on Windows XP or Solaris.
Usecase (java version "1.6.0_14")
1. Start RMI Server on Windows 7 machine
2. Start RMI Client on Solaris machine
3. Wait till client connects to the server and makes some remote call every 1sec.
4. Shutdown RMI Server.
5. Client waits 225 seconds before a time out error is thrown.
Has anyone seen this problem? Any solutions to get around this?
Code used to test this
RmiTestServer.java
public class RmiTestServer
public static void main(String args[])
try
java.rmi.registry.Registry zRegistry = null;
try
zRegistry = java.rmi.registry.LocateRegistry.createRegistry ( 1099 );
catch ( Exception zEx )
zRegistry = java.rmi.registry.LocateRegistry.getRegistry ( 1099 );
if ( zRegistry != null )
System.out.println( "Binding RmiTestService..." );
RmiTest c = new RmiTestImpl();
zRegistry.rebind ( "RmiTestService", c );
System.out.println( "Done Binding RmiTestService..." );
else
System.out.println( "Registry is null." );
catch (Exception e)
e.printStackTrace();
RmiTest.java
public interface RmiTest extends java.rmi.Remote
public void callHello() throws java.rmi.RemoteException;
RmiTestImpl.java
public class RmiTestImpl extends java.rmi.server.UnicastRemoteObject
implements RmiTest
public RmiTestImpl() throws java.rmi.RemoteException
super();
public void callHello() throws java.rmi.RemoteException
System.out.println ("Hello World!!!");
RmiTestClient
public class RmiTestClient
public static void main(String[] args)
System.out.println ("Connecting to: " + args[0] + " Port 1099" );
long lTime = System.currentTimeMillis();
try
RmiTest c = null;
java.rmi.registry.Registry registry = java.rmi.registry.LocateRegistry.getRegistry ( args[0], 1099 );
if ( registry!=null )
System.out.println ("Start lookup... " );
c = (RmiTest)registry.lookup ( "RmiTestService" );
System.out.println( "Lookup Done - " + (System.currentTimeMillis() - lTime)/1000 + "sec\n" );
while( true )
lTime = System.currentTimeMillis();
System.out.println( "Calling Server..." );
c.callHello();
System.out.println( "Done Calling Server - " + (System.currentTimeMillis() - lTime)/1000 + "sec\n" );
lTime = System.currentTimeMillis();
Thread.sleep(1000);
catch (Exception e)
System.out.println( "Time for Exception - " + (System.currentTimeMillis() - lTime)/1000 + "sec\n" );
e.printStackTrace();
Output
Calling Server...
Jun 9, 2011 10:59:19 PM sun.rmi.transport.tcp.TCPChannel newConnection
FINE: main: reuse connection
Jun 9, 2011 10:59:19 PM sun.rmi.transport.tcp.TCPChannel free
FINE: main: reuse connection
Done Calling Server - 0sec
Calling Server...
Jun 9, 2011 10:59:20 PM sun.rmi.transport.tcp.TCPChannel newConnection
FINE: main: reuse connection
Jun 9, 2011 10:59:20 PM sun.rmi.transport.tcp.TCPChannel free
FINE: main: reuse connection
Done Calling Server - 0sec
Calling Server...
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPConnection isDead --------------->RMI Server Shutdown
FINER: main: exception:
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
at sun.rmi.transport.tcp.TCPConnection.isDead(TCPConnection.java:174)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:173)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110)
at RmiTestImpl_Stub.callHello(Unknown Source)
at RmiTestClient.main(RmiTestClient.java:23)
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPConnection isDead
FINE: main: server ping failed
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPChannel free
FINE: main: close connection
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPConnection close
FINE: main: close connection
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPChannel createConnection
FINE: main: create connection
Jun 9, 2011 10:59:21 PM sun.rmi.transport.tcp.TCPEndpoint newSocket
FINER: main: opening socket to [<IP Address>:65427]
Jun 9, 2011 10:59:21 PM sun.rmi.transport.proxy.RMIMasterSocketFactory createSocket
FINE: main: host: <IP Address>, port: 65427
Jun 9, 2011 10:59:24 PM sun.rmi.transport.tcp.TCPChannel$1 run
FINER: RMI Scheduler(0): wake up
Jun 9, 2011 10:59:24 PM sun.rmi.transport.tcp.TCPChannel$1 run
FINER: RMI Scheduler(0): wake up
Jun 9, 2011 10:59:39 PM sun.rmi.transport.tcp.TCPChannel$1 run
FINER: RMI Scheduler(0): wake up
Jun 9, 2011 10:59:39 PM sun.rmi.transport.tcp.TCPChannel freeCachedConnections
FINER: RMI Scheduler(0): connection timeout expired
Jun 9, 2011 10:59:39 PM sun.rmi.transport.tcp.TCPConnection close
FINE: RMI Scheduler(0): close connection
Time for Exception - 224sec
java.rmi.ConnectException: Connection refused to host: <IP Address>; nested exception is:
java.net.ConnectException: Connection timed out
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110)
at RmiTestImpl_Stub.callHello(Unknown Source)
at RmiTestClient.main(RmiTestClient.java:23)
Caused by: java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:189)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
... 5 more

Answer 1

Could you check to see if the remote database is up and running before calling the remote database procedure?