0 Replies Latest reply on Oct 14, 2004 7:00 PM by Varun Rupela

    ejb lookup takes > 90 seconds to timeout? namingServer with

    Varun Rupela Newbie

      Hi:

      Here's how I ran into this issue:

      - let one ejb lookup succeed to a remote server running jboss.
      - take the remote machine off the network (pulled its network cable out).
      - do another ejb lookup.
      - It takes about 90 seconds for the lookup to timeout.

      I debugged into some of the org.jnp.interfaces.NamingContext class. Here's what I think happened?
      - NamingServers are being cached.
      - The TimedSocketFactory is used to create a socketConnection only when the namingServer is not found in the cache. Meaning that "jnp.soTimeout" and "jnp.soTimeout" properties are used only in this case.
      - So when I did the second lookup, the namingServer was found in the cache and lookup was done. That leads to the about 2 min timeout.

      - I wanted to check if I was correct?
      - Also, is there a way to set the timeout on the naming.lookup() call in the org.jnp.interfaces.NamingContext.lookup() method?
      - Is there another option?

      2 stack traces are attached below:
      First: shows the 90 second timeout.
      Second: shows the much quicker timeout, that uses TimedSocketFactory.

      Thanks a lot.

      Varun.

      *************************************
      Stack Trace 1: Shows 90 second timeout

      Caused by: javax.naming.CommunicationException [Root exception is java.rmi.ConnectException: Connection refused to host: 172.16.5.92; nested exception is:
      java.net.ConnectException: Connection timed out: connect]
      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:647)
      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
      at javax.naming.InitialContext.lookup(InitialContext.java:347)
      at com.enttek.framework.util.plugin.HomeObjectCreater.create(HomeObjectCreater.java:32)
      at com.enttek.framework.util.plugin.RemoteEjbFactory.createHomeObject(RemoteEjbFactory.java:44)
      at com.enttek.framework.util.plugin.RemoteEjbFactory.createService(RemoteEjbFactory.java:27)
      ... 11 more
      Caused by: java.rmi.ConnectException: Connection refused to host: 172.16.5.92; nested exception is:
      java.net.ConnectException: Connection timed out: connect
      at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:567)
      at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
      at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
      at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:101)
      at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:528)
      ... 16 more
      Caused by: java.net.ConnectException: Connection timed out: connect
      at java.net.PlainSocketImpl.socketConnect(Native Method)
      at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
      at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
      at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
      at java.net.Socket.connect(Socket.java:452)
      at java.net.Socket.connect(Socket.java:402)
      at java.net.Socket.(Socket.java:309)
      at java.net.Socket.(Socket.java:124)
      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:562)
      ... 21 more


      ***************************************************

      Stack Trace 2: Shows the quicker timeout.

      2004-10-14 14:16:51,455 [TimerTask: Connection Monitor] WARN NamingContext - Failed to connect to backofficetest:1099
      javax.naming.CommunicationException: Failed to connect to server backofficetest:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server backofficetest:1099 [Root exception is java.net.ConnectException: Connect attempt timed out]]
      at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:215)
      at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1183)
      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:514)
      at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
      at javax.naming.InitialContext.lookup(InitialContext.java:347)
      at com.enttek.framework.util.plugin.HomeObjectCreater.create(HomeObjectCreater.java:32)
      at com.enttek.framework.util.plugin.RemoteEjbFactory.createHomeObject(RemoteEjbFactory.java:44)
      at com.enttek.framework.util.plugin.RemoteEjbFactory.createService(RemoteEjbFactory.java:27)
      at com.enttek.framework.util.plugin.EjbFactoryProxy.createService(EjbFactoryProxy.java:20)
      at com.enttek.framework.util.plugin.ServiceLocator.createService(ServiceLocator.java:63)
      at com.enttek.framework.util.plugin.ServiceLocator.getServiceForEndpoint(ServiceLocator.java:59)
      at com.enttek.framework.util.plugin.ServiceLocator.getService(ServiceLocator.java:42)
      at com.enttek.framework.util.plugin.ServiceFactory.getService(ServiceFactory.java:170)
      at com.enttek.salesapp.ConnectionMonitor.getBOHealthMonitor(ConnectionMonitor.java:73)
      at com.enttek.salesapp.ConnectionMonitor.checkBOHealth(ConnectionMonitor.java:55)
      at com.enttek.salesapp.ConnectionMonitor.access$000(ConnectionMonitor.java:20)
      at com.enttek.salesapp.ConnectionMonitor$1.run(ConnectionMonitor.java:47)
      at com.enttek.framework.util.TimerFactoryImpl$NamedTimerTask.run(TimerFactoryImpl.java:21)
      at java.util.TimerThread.mainLoop(Timer.java:432)
      at java.util.TimerThread.run(Timer.java:382)
      Caused by: javax.naming.ServiceUnavailableException: Failed to connect to server backofficetest:1099 [Root exception is java.net.ConnectException: Connect attempt timed out]
      at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:190)
      ... 19 more
      Caused by: java.net.ConnectException: Connect attempt timed out
      at org.jnp.interfaces.TimedSocketFactory$ConnectThread.createSocket(TimedSocketFactory.java:139)
      at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:82)
      at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:71)
      at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:62)
      at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:186)
      ... 19 more