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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » ProcessInstance and DB2 storage

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amittalekar
PostPosted: Wed Dec 04, 2002 6:12 am    Post subject: ProcessInstance and DB2 storage Reply with quote

Disciple

Joined: 03 Apr 2002
Posts: 166
Location: VA, USA
Please share if u have details on this...

..Suppose process contain 5 auto activities, a manual activity and a subprocess...What happens behind the scene at DB2 level when we create Instance of this process?...In DB2 database how much memory will be allocated for this or what actual data will be stored in DB2?

Can I find any documentation on this?
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jmac
PostPosted: Wed Dec 04, 2002 6:53 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
Amit:

At the time the process is created the entire "Top Level" process instance is stored in DB2. There is no space in the DB taken up for the SubProcess until that activity is actually started.

Hope this helps
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amittalekar
PostPosted: Wed Dec 04, 2002 7:26 am    Post subject: Reply with quote

Disciple

Joined: 03 Apr 2002
Posts: 166
Location: VA, USA
thx Jmac...

where can I find any documentation on this?
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jmac
PostPosted: Wed Dec 04, 2002 7:34 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
Amit:

I have no idea where this might be documented. I just know that's how it is.

If you want to proove this. Use the InstanceMonitor APIs and have a look at what you see as soon as an instance is created.
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