RE: multiple extents are OK, dagnabbit!

sort of on the subject.....I once had a table with ~88000 extents (most 1 block!)
it took 8 hours to delete and a subsequent coalesce ran for 2 hours before failing as it ran out of shared memory....(8.1.5).....

-----Original Message-----
Sent: Tuesday, January 22, 2002 11:55 AM To: Multiple recipients of list ORACLE-L

Hi Jeremiah,

        The problem arose in the catalog upgrade script. It would never return. My diary says we let one attempt run for 36 hours. The process showed CPU usage and I/O but nothing happened. Some of the Oracle guys figured the problem was with the $fet (or whatever tables hold the extent
info, I never bother with the internals of the data dictionary) having problems while being restructured. Once the tables were changed from 40K to 500M
extents the upgrade took less than 2 hours.

One of the suggestions I did not use was to edit sql.bsq to provide much larger
extents for the table holding the extent info. Even though I do this for the SOURCE$ table I am a big fan of the KISS principle and rebuilding the tables
needed to be done anyways.

HTH
Dave

> Can you elaborate on exactly what happened? 8.1.5 to 8.1.6 is just a
> catalog script and a binary change. What error did you encounter, and
> at which step in the upgrade? Extents should not matter in an
> upgrade.

-- 
Dave Morgan
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