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sonalzade · Posted: Mon Nov 26, 2012 6:41 am Post subject:

Hi,

I am seeking for your help to resolve one requirement.

In the system, there are different subflows which communicates to different systems. We get input message from queue in the Main Flow and the same is passed to a Routing Sub Flow. Here we can not replace the Routing Sub Flow with the Route node as to determine routing we need to call few services etc. The Routing Sub Flow based on processing output determines to which subflow to route the incoming message. The processing message is not required once Routing destination is determined.

Currently it implemented as follow: message enters Routing Sub Flow which first stores the incoming message to one temp queue. It then processes transaction, determines the Routing destination and then picks up the incoming message from the temp queue and forwards to the appropriate destination sub flow.

Now the defect is raised mentioning that the temp queue is redundant and we should store the incoming message in env variable and look it up later and forward to destination sub flow.

We tried the solution by storing incoming message in env variable and later forwarding to sub flow. It is successful for one sub flow but in the other where a collector node is used, it's failing. The collector node in the destination sub flow is throwing below exception: BIPmsgs: 6105, Invalid buffer parameters and also mentioning about HTTPInputHeader and WSINPHDR. Pls find the exception text below. The flow then stucks going in an infinite loop, getting stucked in Collector node.

ExceptionList
RecoverableException
File:CHARACTER:/build/S700_P/src/DataFlowEngine/ImbDataFlowNode.cpp
Line:INTEGER:1083
Function:CHARACTER:ImbDataFlowNode::createExceptionList
Type:CHARACTER:ComIbmCollectorNode
Name:CHARACTER:EB_270_ROUTE_MAIN_FLOW#FCMComposite_1_20.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW#FCMComposite_1_1
Label:CHARACTER:EB_270_ROUTE_MAIN_FLOW.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW.Collector
Catalog:CHARACTER:BIPmsgs
Severity:INTEGER:3
Number:INTEGER:2230
Text:CHARACTER:Node throwing exception
ParserException
File:CHARACTER:/build/S700_P/src/DataFlowEngine/ImbRootParser.cpp
Line:INTEGER:816
Function:CHARACTER:ImbRootParser::parseNextItem
Type:CHARACTER:ComIbmCollectorNode
Name:CHARACTER:EB_270_ROUTE_MAIN_FLOW#FCMComposite_1_20.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW#FCMComposite_1_1
Label:CHARACTER:EB_270_ROUTE_MAIN_FLOW.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW.Collector
Catalog:CHARACTER:BIPmsgs
Severity:INTEGER:2
Number:INTEGER:5902
Text:CHARACTER:Exception whilst parsing
Insert
Type:INTEGER:5
Text:CHARACTER:Root
Insert
Type:INTEGER:5
Text:CHARACTER:HTTPInputHeader
Insert
Type:INTEGER:5
Text:CHARACTER:Null Buffer
ParserException
File:CHARACTER:/build/S700_P/src/WebServices/WSLibrary/ImbWSHeaderParsers.cpp
Line:INTEGER:249
Function:CHARACTER:ImbWSInputHeaderParser::refreshElementsFromBitStream
Type:CHARACTER:ComIbmCollectorNode
Name:CHARACTER:EB_270_ROUTE_MAIN_FLOW#FCMComposite_1_20.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW#FCMComposite_1_1
Label:CHARACTER:EB_270_ROUTE_MAIN_FLOW.EB_270_MAPTO_271FACADEREQUEST_SUB_FLOW.Collector
Catalog:CHARACTER:BIPmsgs
Severity:INTEGER:3
Number:INTEGER:6105
Text:CHARACTER:Invalid buffer parameters
Insert
Type:INTEGER:5
Text:CHARACTER:HTTPInputHeader
Insert
Type:INTEGER:5
Text:CHARACTER:WSINPHDR

We googled for the exception and found only one relevant post:
http://www.mqseries.net/phpBB/viewtopic.php?p=241606&sid=2d90d4da8ea58db1f219eafca844d53e

The exception in the above post is Null Buffer but we are getting Invalid Buffer parameters but initially we got this exception as well). The reply mentions that this problem occurs in Linux system, the system which we are using. We are already using the java compute node to copy the message headers and the incoming message to BLOB/BLOB. But we are still getting above mentioned exception.

We even tried to propagate the exact same incoming message. We stored incoming message in map against correlationId and then upon determining Routing destination, look up the same incoming MbMessage from the map against correlationId and forward to sub flow. But the issue persists.

Here are the Broker details:
OS Name: Linux
OS Version: #1 SMP 2010-05-20 11:14:20 +0200
OS Architechture: s390x
WMB Version: 7.0.0.5
Build Level: S700-FP05

Pl advise. Looking forward to getting your reply.

Thanks n regards,

Sonal Zade