Heartbeat transaction

[Thomas Fortino]

Hello All,

     I have been tasked with finding out if Cloverleaf can send a heartbeat (keep alive) transaction. If so, how is it done? (Example through a tcl proc and where is the proc inserted?) The scenario is a connection timeout between the two firewalls, which are about 75-100 miles apart. The Cloverleaf builds up transactions due to the target system

Topic

[Mark Thompson]

Thomas,

We use a protocol:UPOC thread to generate messages at at regular intervals.  In the Properties window of the thread you can specify a “Read TPS” proc.  This is a TPS style proc that creates the content of the message.  All of your message generation code goes in the “time {” section of the TPS proc instead of the usual “run {” section.  The heart of this code boils down to:

time {

   # Create and CONTINUE a new message

   set msgtext “Whatever you want”

   set newmh [msgcreate -class engine -type data]

   msgset $newmh $msgtext

   lappend dispList “CONTINUE $newmh”

}

You can route messages from this thread just like messages from any other inbound thread.  Hope this helps.

- Mark Thompson
HealthPartners

[Anonymous]

Thomas,

Why the Cloverleaf interface is not set to resend the message after the timeout waiting for the ACK? Will Cloverleaf continue sending if you bounce it or you need to bounce the other side?

Could it be that the message or the ACK was lost for some reason but the connection is still alive?

[Anonymous]

also see ‘firewall problems and workarounds’ on another page in this section

[Author]

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