RE: hash partitioning optimal number of partitions

RE: hash partitioning optimal number of partitions

 

  

Which one 2,4,8,16,32,64? Do you pick one, monitor performance and then
make adjustments? Or is a million rows per partition your formula?

This table has 320,000,000 rows.

-----Original Message-----
From: ann [mailto:ann.[Email address protected]
Sent: Friday, October 05, 2007 2:18 PM
To: Jankiewicz Bill - wjanki
Subject: Re: hash partitioning optimal number of partitions

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2,4,8,16,32,64.......... Seems like about a million rows per partition

work for me. I look at the number of unique keys also.

Ann Habel
816-823-4040
816-729-2631 (cell)
DBA
Architecture and Infrastructure Management Team
Heartland Financial Systems Division - 6bd




"Jankiewicz Bill - wjanki "
[Email address protected]
10/05/2007 02:11 PM

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Subject
hash partitioning optimal number of partitions






Anyone have a formula or methodology for determining the optimal number
of partitions in a hash partitioned table?

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