RE: Online index creation on 9.2

I appreciate the response. The questions here are not "Are there waits?" Most obviously, there are. The questions flying around here are: We have been doing this with no problems when the database was 8.1.7.4. Now we try when the database is 9.2.0.3, and we don't just see waits, we see the thing go right into the dirt. So question is, does 9.2.0.3 have "issues" with online index builds on large tables in a large database? We have a TAR going, and we are going to try to figure out a way we can get some diagnostics going. There is no way management is going to allow us to do this on the production database. It would have been nice if a big mess of diagnostics had been running at the time. But it wasn't (other than spotlight -- OK, I use _ONE_ GUI), and when you're up to your ass in alligators, it's hard to think much about draining the swamp. I suspect what we will try to find out is what type of transactions would be most affected and get with the application people to see if we find some correlation.

> -----Original Message-----
>
> What are the wait events of the slowed sessions?
>
> What is the correspondence with v$session_longops phases for the
> rebuild?
>
> Really, the answer to 75% of the questions in this group is "look at
> v$session_wait."
>

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Author: Stephen Lee
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