Niall,

I don't know . I need to try that too.

thank you

Gene Gurevich
Oracle MySQL Operations - OMO
224-405-4079


                                                 
        "Niall                                    
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        07/18/2007 05:40       oracle-l@(protected)        
        AM                                   Subject
                         Re: tunning an index build      
                                                 
                                                 
                                                 
                                                 
                                                 
                                                 




what happens if you try and do this without parallelisation - or with a
lower degree?

On 7/18/07, genegurevich@(protected):
Hi all:

I think I have posted on this issue before, but I can't find my old
Emails
so - sorry for the repeated question.
Here is the situation. I am running oracle 9208 and have a 40G table
with
a lot of indices - mostly bitmap
Their sizes are under 1G. These indices take about 20 to 30 minutes to
build. That seems to be too long.
I have just waited for 24 minutes to build a 82M index. The index is
parallelized 4 way, the table is
parallelized 6 ways. I have 2G sga and 1.5G pga. I do see a lot of IO
waits
(via vmstat) and I have UNIX
team looking into that. I think I have plenty of memory and the
parallelizm
should be enough for a small index.

Any thoughts on what else I should look at?

thank you

Gene Gurevich


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Niall Litchfield
Oracle DBA
http://www.orawin.info


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