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Re: How to map a client program to a Resource Manager consumer group

From: fairlie rego <>
Date: Thu, 1 Nov 2007 17:11:31 +1100 (EST)
Message-ID: <>

Hi Tony,    

  I have attached a sample script in a separate email. The script creates a plan and consumer groups.   

One of the sites I am working on has had limited success with RM. There have been a couple of times it has bailed us out but on more than one occassion we have had sessions stuck in resmgr: cpu quantum even when the CPU on the box is at 50% idle.

  I spent a day with the RM development team in San Fran last month identifying issues in the product. Unfortunately most of these I believe are unpublished.    

  The feature in RM to throttle sessions works fine. There are times when RM does not kick in even when load is nearing 100% Also RM also does not function properly on machines with more than 8 cpus.    


Tony van Lingen <> wrote:   Fairlie,

That's not encouraging. I did do some digging on Metalink and Google, but the only bugs I was able to find related to problems with mapping priorities. Can you give me an idea of the bugs that you found? Are they so bad that you would not use RM in a production environment at all? What do other people think about this?


fairlie rego wrote:
> I second Peter's comment and I can give you umpteen number of bugs
> which I have logged and know of in the RM subject area and I seriously
> doubt whether 11g has fixed many of them
> Thanks
> Fairlie
> */Peter McLarty

/* wrote:
> Hi Tony
> From a conversation I had with a guy from Oracle a few months
> back, you are probably seeing a few bugs with resource manager.
> He suggested anyone who really wanted to get stuff working to use 11g
> Apparently there are a few gremlins there
> Cheers
> Peter
> -----Original Message-----
> From: Tony van Lingen []
> Sent: Wed 10/31/2007 10:30 AM
> To:
> Subject: Re: How to map a client program to a Resource Manager
> consumer group
> Morning List.
> Hmm, not a single answer... does that mean that nobody actually
> uses the
> resource manager? What is good practice here.. If you use the
> resource
> manager at all, how do you map user sessions to consumer groups?
> Is it
> even advisable to use CLIENT_PROGRAM?
> All suggestions welcome.
> Cheers.
> Tony
> *Fairlie Rego
> *Senior Oracle Consultant
> M: +61 402 792 405
> ------------------------------------------------------------------------


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          Fairlie Rego
Senior Oracle Consultant
  M: +61 402 792 405

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Received on Thu Nov 01 2007 - 01:11:31 CDT

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