Mercator 6.7.1 and IBM Websphere MQ Client Adapter

[MarkX1]

I have a map that is triggered through a MQseries-InputCard (via the Event server) using the following commands :

-CVT -QMN <myQMgr> -QN <MyQName> -QTY S -LSN 30

Tracing and logging has showed that i' am reading between 30 and 50 messages / second... (1 run processes about 1500 messages)
Does the -LSN adapter means that it always reads during 30 seconds before starting the map ? (even if only 1 message is present ?)
I've tried with the -LSN 0 param, but then the map doesn't trigger...
My goal is rather simple :
- Start the map on arrival of (any number) of messages
- Read all messages of the Q.
- Process them

Important to mention : RunOnly1InstanceAtATime = true

What can I do to achieve my goal ? Any help would be appreciated...

 

[JuJutsu]

Have you tried using -MID * and no -QTY and No -LSN?

Uncomment pollwaitimemin and set to 20 to 40.(in the mercator.ini file)

You may need -REFRESH is the messages on the queue could be commited out of order. If this is used I also suggest using the -EQN option.

The -CVT indicates the source is on mainframe.



JuJutsu - Jeff S.
Support Analyst

 

[MarkX1]

Thx JuJutsu...
I will try these out as soon as possible...
(will post feedback)

 

[MarkX1]

JuJutsu,

When setting the - MID * param (even in combination with pollwaitimemin) makes the map :
- read 1 message at a time
- process 1 message

Our current solution is the most acceptable (-QTY S -LSN 30)
for us if we would know the answer to the next question :

"Does the -LSN 30 parameter mean that the adapter always 'listens' during 30 seconds before starting the map ? (even if only 1 message is present ?)"

 

[JuJutsu]

Yes. -LSN 30 means listen for 30 seconds. YOu still need the -refresh and -eqn options based on your description.





JuJutsu - Jeff S.
Support Analyst