[SNMP4J] Socket is closed exception

[Mark Stang]

Hi,
I have a question about how to set up multiple traps.  In one case I am sending a "test" trap and in the other case I have a periodic trap being sent.  After sending my test trap, I closed the instance of Snmp.  That seems to have affected the periodic trap being sent.  I went out of my way to try and isolate them by creating independent instances of Snmp, Target Community and the Listener.  The only common instance is the PDU.

11:56:47,176 DEBUG [SnmpManagerImpl] Sending Test SNMP Trap
11:56:50,566 DEBUG [SnmpManagerImpl$2] Sending heartbeat
11:56:50,567 DEBUG [SnmpManagerImpl$2] IOExceptionorg.snmp4j.MessageException: Socket is closed
11:57:00,569 DEBUG [SnmpManagerImpl$2] Sending heartbeat
11:57:00,570 DEBUG [SnmpManagerImpl$2] IOExceptionorg.snmp4j.MessageException: Socket is closed
11:57:10,573 DEBUG [SnmpManagerImpl$2] Sending heartbeat
11:57:10,573 DEBUG [SnmpManagerImpl$2] IOExceptionorg.snmp4j.MessageException: Socket is closed
11:57:20,579 DEBUG [SnmpManagerImpl$2] Sending heartbeat
11:57:20,580 DEBUG [SnmpManagerImpl$2] IOExceptionorg.snmp4j.MessageException: Socket is closed


Thoughts?

Thanks!

Mark

Mark J. Stang
Software Engineer
office: +1 303.468.2900
Ping Identity



-----Original Message-----
From: snmp4j-bounces at agentpp.org on behalf of Mark Stang
Sent: Mon 7/16/2007 5:08 PM
To: Gibbons, Sean; snmp4j at agentpp.org
Subject: [SNMP4J] SNMP v1 trap
 
Hi,
I am trying to set up a periodic Trap, which I have running just fine.  However, I need to set up a second Trap as a Test Trap until the user decides to persist the data.  At that time, I need to cancel the old Trap and create a new one.  All of which I can do except I am not sure which variables I can just make changes to/share and which ones I need to create "new" ones of.

For instance, I can create an instance of the Snmp class, but it needs a transport.  Does that mean each time I create a new instance of Snmp I have to create a new instance of the transport?  And what about the CommunityTarget.

  transport = new DefaultUdpTransportMapping();
  snmp = new Snmp(transport);
  transport.listen();
  // setting up target
  target = new CommunityTarget();

I need to be able to save off the old ones to kill them.

    private void cancelTimer()
    {
        if (timerTask != null)
        {
            log.debug("Canceling Heartbeat Timer");
            timerTask.cancel();
        }
    }

When the timer task stops what does it have to do to kill the Trap?

And finally, how much code do I need to just "send"?  Should I re-create the instance of Snmp or just call the send method on it?

thanks,

Mark
Mark J. Stang
Software Engineer
office: +1 303.468.2900
Ping Identity
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