LLP Listener not processing message at the first time

[sp3011]

My LLP Listener ist waiting for a connection and at the first time the message is not processed. Some charracters FFFFFFFF are returned, but no ack and no error is produced by Mirth. After the timeout of the client the second transmission is ok, ack is sent and a file is written.
I use Mirth 1.3.2 on a Windows machine with Java 1.5.4.

Please help - it's urgent.

[chrisl]

Re: LLP Listener not processing message at the first time

What system is connecting to Mirth? There is a known issue with Centricity/Millbrook MIK that is fixed in 1.4.


-Chris

[sp3011]

Re: LLP Listener not processing message at the first time

It is an hospital information system developed by a company in Austria. I can't check or change something there. At the moment I configured a channel (file to socket) and a econd channel (socket to file) on this machine and it works. Maybe we have the same "feature" which this system. What can I do to bring the system up?

Thank you
Peter

[sp3011]

Re: LLP Listener not processing message at the first time

Can you describe this known issue in detail or give me a link? In the mean time I have written a small java client programm, which connects to Mirth and transmits the data immediately - no problem.
My hospital information system connects to Mirth and later on, when data is available, the transfer is initiated. At this time the ACK from Mirth is FFF..., the connect is repeated and everything is ok.
What could be the reason for the first wrong ACK?

Peter

[jbartels]

Re: LLP Listener not processing message at the first time

Is the first message an "alive" message? Some systems will send one dummy or blank message to make sure the reciever is ready to recieve messages.

Check the Mirth log, that might show you what the raw message is too.

If the Mirth log doesn't help try using Wireshark to monitor what the other system is sending you. Especially if you can't get a lot of information form the other company. See if they are sending you a real HL7 message or just some testing message as the first one. The help files in Wireshark will tell you how to set up a filter to only trap packets coming from that machine, to your machine, and back the other way.

Hope that helps.

[chrisl]

Re: LLP Listener not processing message at the first time

Peter:

http://www.mirthproject.org/community/issues/browse/MIRTH-231

That is the link to the known issue.

-Chris

[albertosaez]

Re: LLP Listener not processing message at the first time

In the SVN thw problem is solved. You can downloaded the 1.3.2 source, and update some files.

If you're interested, we can guide in the process.

[sp3011]

Re: LLP Listener not processing message at the first time

In the SVN thw problem is solved. You can downloaded the 1.3.2 source, and update some files.

If you're interested, we can guide in the process.

Thank you very much. I'm really interested to generate a new build by my own. Please tell me how to continue. Where can I download the source code? What tools are required?

Peter

[albertosaez]

Re: LLP Listener not processing message at the first time

You only need a subversion client to retrieve the source code.

Form compiling: ant, and java (JSDK 1.5)

If you only need this change, I can send you a compiled version.

[chrisl]

Re: LLP Listener not processing message at the first time

Be warned the SVN will be unstable for the next two weeks as 1.4 is prepared.

-Chris

[sp3011]

Re: LLP Listener not processing message at the first time

Which revision shoud I use to build a new version, which keeps the connection open all the time?

Thanks,
Peter

[albertosaez]

Re: LLP Listener not processing message at the first time

Use the src for 1.3.2 branch

But get the nest two svn files:

src/org/mule/providers/tcp/TcpMessageReceiver.java
src/org/mule/providers/tcp/protocols/LlpProtocol.java