RE: multiple extents are OK, dagnabbit!

Sorry Jeremiah, I don't have a clue.......

got the same error (after the same 2 hours) after purging the shared pool; there was no activity at all on the database, so I thought about increasing the size of the shared pool (~10.5MB) but had a need, and the option, of simply replacing the database with a backup.

SQL> alter tablespace USR2 coalesce
*
ERROR at line 1:
ORA-04031: unable to allocate 4180 bytes of shared memory ("shared pool","unknown object","sga heap","state objects")    

-----Original Message-----
Sent: Wednesday, January 23, 2002 11:56 AM To: Multiple recipients of list ORACLE-L

On Tue, 22 Jan 2002, Wiegand, Kurt wrote:

> 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).....

Kurt,

What component of the SGA becomes exhausted by a long-running coalesce?

--
Jeremiah Wilton
http://www.speakeasy.net/~jwilton



> -----Original Message-----

> Sent: Tuesday, January 22, 2002 11:55 AM

> To: Multiple recipients of list ORACLE-L

> 

>       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.


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