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| JVM management of a Java node |
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| anupamsharma |
 Posted: Thu Jan 08, 2004 6:36 am Post subject: JVM management of a Java node |
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Newbie
Joined: 29 Dec 2003
Posts: 5
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Hi,
As part of experimenting with the Java Node, I was wondering if anyone knows of any documents that talk about the JVM management of WMQI.
Basically, when a java node is added to a message flow, how does WMQI allocate memory to this node? What happens if, I want to use this java node in other message flows, in the same broker? Does the broker allocate separate memory to this node everytime it is added to a flow, or does it maintain just one memory location for this node, no matter how many instances you create.
Thanks.
Anupam |
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| jefflowrey |
| Posted: Thu Jan 08, 2004 8:32 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I don't remember all the details myself, but I'm pretty sure this is discussed in the Programming Guide.
_________________
I am *not* the model of the modern major general. |
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| kirani |
| Posted: Thu Jan 08, 2004 7:03 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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An instance of a node is shared between all the threads that will run the containing message flow.
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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| anupamsharma |
| Posted: Fri Jan 09, 2004 7:40 am Post subject: |
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Newbie
Joined: 29 Dec 2003
Posts: 5
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If an instance of a node is shared between all the threads that will run the containing message flow, does this mean that if I have two copies of the Java Node in one message flow, they will be sharing the same instance.
I have noticed that every time you deploy the message flow containing the java node, the java node is initialized again. |
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