Re: Poor performance after upgrade from Online 7.1 to 7.23
Posted in 1998
Have you done UPDATE STATISTICS on the DBs?
On Wed, 6 May 1998 19:45:21 -0500, "Robert Griffin" <rag4@mead.com>
wrote:
>Greetings,
>
>We have two databases on the same rs6000 running AIX with the 7.23 Online
>engine. After our recent upgrade from Online 7.1 we experienced a huge
>performance hit. We, with the help of Informix support, found the problem
>to be a bad index in one of our larger tables. Since then we have
>discovered other, less critical speed problems that we have yet to get
>Informix support to look at. Can someone give me info on how to do this
>myself? I'm wanting to use the oncheck -cI command to verify the other
>indexes are correct, but i can't find any specifics on how to use it. Can
>someone help?
>
>By the way, this is a 'round the clock production system, so I must be
>careful.
>
>
>Thanks in advance for any help.
>RG
>
>
>
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