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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » MQSIv2.0.2 Out of Memory in Exec. group

MQSIv2.0.2 Out of Memory in Exec. group

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mkhadse

Posted: Fri May 03, 2002 5:04 am Post subject:

Acolyte

Joined: 31 Dec 1969
Posts: 73

Hi

I get an Out of Memory Error when processing a batch of large XML files (~11 MB) in one of the execution groups and particularly in one flow. It always tends to happen in an Reset Content Descriptor node.

I don't have memory for one more execution group to hold the flow generating errors? What are my options in such a case to get rid of the Out of Memory Error.

I am using MQSI v2.0.2. The broker is on AIX.

Thanks

mpuetz

Posted: Sun May 05, 2002 6:01 am Post subject:

Centurion

Joined: 05 Jul 2001
Posts: 149
Location: IBM/Central WebSphere Services

Hi,

mqsi 2.0.2 brokers on AIX by default only support 2 x 256MB heap space.
You can order a patched AIX broker binary which lifts this barrier.

_________________
Mathias Puetz

IBM/Central WebSphere Services
WebSphere Business Integration Specialist

CodeCraft

Posted: Mon May 06, 2002 1:38 am Post subject:

Disciple

Joined: 05 Sep 2001
Posts: 195

Is the XML being processed as a single 11mb message, or a series of smaller messages? Depending on which, there may be other considerations.

mkhadse

Posted: Mon May 06, 2002 7:04 am Post subject:

Acolyte

Joined: 31 Dec 1969
Posts: 73

This is a single 11MB message. When only one 11MB meesage is sent, it gets processed. However when a series of 11MB messages with some small messages(4k) are sent I see this problem.

Is it more likely to get this error when the a large number of nodes in the flow handling large messages? Does MQSI keep the messages into the heap before every it passes through every node or does it write out to a external file? If it is the first case then breaking a large flow into multiple flows with
smaller number of nodes?

Mathias,
How do I go about getting this patch for MQSIv2.0.2 on AIX. Is this available as a part of any CSD? We have already increased the Memory address space for to 1GB (the max).

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