Re: Parallel query on when it's not supposed to be (?)

  • From: Mark Richard <mrichard@xxxxxxxxxxxxxxxxx>
  • To: janine@xxxxxxxxxx
  • Date: Wed, 15 Sep 2004 12:03:10 +1000

I just wanted to pose a question to anyone on the list (particular the wait
event guru's like Cary)...

Eliminating parallel query because you are seeing waits for it sounds to me
a little like tuning the BCHR.  I can't help but wonder if waiting for a
parallel query is still the quickest way to get things done?  Would killing
the parallel query effectively move the waits to another category without
achieving any real gain?


                      Janine A Sisk                                             
                      <janine@xxxxxxxxxx        To:       
                      >                         cc:                             
                      Sent by:                  Subject:  Parallel query on 
when it's not supposed to be (?)                           
                      15/09/2004 05:58                                          
                      Please respond to                                         

BTW, the reason I care about this is that I'm trying to tune the
production server and a fair number of waits associated with parallel
query are showing up in the statspack report.  Since parallel query is
not supposed to be turned on there either, I started looking into it
and found that both systems are exhibiting this bizarre (to me, anyway)

Can anyone a) explain what the heck is going on here and b) tell me how
to drive a stake through the heart of parallel query on this system?




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