Re: [HAPI-devel] My HAPI server stops accepting connections

[Tom W. <tw...@su...>]

It looks like the server is simply not accepting new connections, like it is no longer listening on the port.

Like I said, it works fine for most of the day, the problem is when I leave it overnight and try to establish a new connection in the morning. Nothing is written to the server logs, the client connection times out.

I bumped up the log level to DEBUG, but there isn't anything in the logs about failed connections or any error related to message processing.

I can't deliver this software if it won't run more than a few hours, and I'm baffled as to where to look next.

-tom

From: Sreenath Gadipally [mailto:Sre...@ma...]
Sent: Thursday, January 09, 2014 8:42 AM
To: Christian Ohr; Tom Wilson
Cc: hl7...@li...
Subject: RE: [HAPI-devel] My HAPI server stops accepting connections

Why we get timeout issues in hapi everytime when we access the appl

Thanks & Regards
Sreenath

From: Christian Ohr [mailto:chr...@gm...]
Sent: 09 January 2014 22:07
To: Tom Wilson
Cc: hl7...@li...<mailto:hl7...@li...>
Subject: Re: [HAPI-devel] My HAPI server stops accepting connections

The error your client is producing simply says that it did not get a response that matches the control ID of the message sent away.
I can only guess about the reasons... Was the physical connection still present? Did the server side (i.e. ORU_R01_ReceivingApplication) respond within the timeout time frame (like 30s)? And if not, why? Did it receive the request at all? Maybe setting the log level to DEBUG can help, too....
regards
Christian

2014/1/7 Tom Wilson <tw...@su...<mailto:tw...@su...>>
Help!

I implemented a HAPI server according to the example:

              server = DirectHapiContext.getHapiContext().newServer(LISTENER_PORT,
                           USE_TLS);
              ORU_R01_ReceivingApplication handler = new ORU_R01_ReceivingApplication();
              handler.setHl7Queue(hl7Queue );
              server.registerApplication("ORU", "R01", handler);
              server.registerConnectionListener(new ORU_R01_ConnectionListener());
              server.setExceptionHandler(new ORU_R01_ExceptionHandler());

              try {
                     server.startAndWait();
              } catch (InterruptedException e) {
                     LOG.error("Startup interrupted!", e);
              }


It works great, but after leaving it running overnight, when I come back in the morning it will not accept connections. The client produces this error:

ca.uhn.hl7v2.HL7Exception: Timeout waiting for response to message with control ID 20131216123844000002

I don't see anything in the logs that would indicate where the problem is. How do I troubleshoot this?

-tom

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