ASG
IBM
Zystems
Cressida
Icon
Netflexity
 
  MQSeries.net
Search  Search       Tech Exchange      Education      Certifications      Library      Info Center      SupportPacs      LinkedIn  Search  Search                                                                   FAQ  FAQ   Usergroups  Usergroups
 
Register  ::  Log in Log in to check your private messages
 
RSS Feed - WebSphere MQ Support RSS Feed - Message Broker Support

MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » UPES Framework

Post new topic  Reply to topic
 UPES Framework « View previous topic :: View next topic » 
Author Message
pedmartins
PostPosted: Wed Sep 21, 2005 1:55 am    Post subject: UPES Framework Reply with quote

Newbie

Joined: 29 Apr 2005
Posts: 5
I hope you can give me some help in the following issue:

The project aiming in the context of this issue consists in the implementation of an UPES using the UPES framework delivered in the MQ Workflow 3.5 version.

We have adapted the examples in %MQWorkflowDir%\SMP\UpesFrameWork\sample1 of this MQ Workflow version to run in Websphere Application Server threaded environment.

The configuration used for this UPES in the properties file configuration is the follwing:

# Upes Settings
# -------------

Upes.Message.Pipe.Class = com.ibm.workflow.util.msg.MQPipe
Upes.ThreadPool.Size = 1
Upes.System = FMCSYSCH
Upes.System.Group = FMCGRPCH
Upes.Outbound.MQ.Queue = UPESWFCHQ
Upes.Outbound.MQ.Queue.Manager = FMCQMCH
Upes.Version = 3.5


We are using the following MQ Workflow and MQ libraries:

c:\PROGRA~1\IBMWEB~1\BIN\fmcoupes.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\connector.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\com.ibm.mq.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\jta.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\Java\lib\com.ibm.mqbind.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\Java\lib\com.ibm.mqjms.jar
C:\Program Files\IBM\WebSphere MQ\Java\lib\Java\lib\jms.jar

These are the versions of the used products:

Windows 2000 platform
Websphere Application Server 5.0.2
MQWorkflow 3.5 Fix2
MQ 5.3 Fix7


The problem:

We have verified a memory leak in production environment of this UPES application. After tracking of the problem using profiling tools we have identified the following classes that should be the cause of this memory leak:
java.util.HashMap$Entry
java.lang.ThreadLocal
java.lang.ThreadLocal$SecureKey

We believe at this moment that this should be caused because of some multi-threading compatibility issue.


The questions:

- In respect of the referenced MQ Workflow and MQ libraries are there any thred-safeness issues that may cause this problem?

- Is there any configuration that may support this multi-threaded environment?


Thanks

Pedro Alves Martins
_________________
Best regards,

Pedro Martins
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic  Reply to topic Page 1 of 1

MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » UPES Framework
Jump to:  



You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Protected by Anti-Spam ACP
  
 


Theme by Dustin Baccetti
Powered by phpBB © 2001, 2002 phpBB Group

Copyright © MQSeries.net. All rights reserved.