Posted: Thu Jun 13, 2013 5:53 am Post subject: Issue with Collector Node (Control and Multi instance)
Apprentice
Joined: 24 Mar 2003 Posts: 49 Location: USA
Here is my Problem:
I am on Message Broker 8.0.0.2 running on ZLinux
I have a flow that takes a request, propagate the message from a compute node to call a webservice multiple times depending on contents of the message, group the responses together and send an output. (I cannot change the External webservice to take all of them together. Tried not possible - Legacy)
I have a timeout setting at 10 Sec and Expiry at 25 Sec.
There are two issues I need advice upon:
1. Using a Control terminal is there a way I can say that the processing is complete? (I can send a message once all the requests were sent out to the webservice to the control terminal of Collector node. But that does not seem to work. I tried all completed collections/First collection options)
2. This is the major problem. The flow is running on two instances on two execution groups. If I send one message Its working fine. But If I load 3 or more messages one time, I am not getting responses back from collection. It becomes very slow. Am I missing any thing? Is there a known issue? Once we go live the number of instances will increase exponentially.
I almost gave up and before rising a PMR like to know any expertise advice
The collector node has one thread pool on the input side and a different thread pool on the output side. Increasing instances of the flow may only increase the threadpool on the input side.
Don't use the control terminal to complete a collection. Add an additional message to the collection on an additional input terminal, and use that to complete a collection (i.e. an unbounded number of inputs on one terminal, and a single input on another. once you send a message to the second terminal, the collection is complete and propagated).
Take a usertrace to debug your issue. It'll get you started on figuring out where the issue is.
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