Oracle-L: RE: SEGMENT SPACE MANAGEMENT AUTO hangs on 9.2.0.4 on Linux

From: Goulet, Dick <DGoulet_at_vicr.com>
Date: Tue, 30 Sep 2003 12:59:27 -0800
Message-ID: <F001.005D188A.20030930125927@fatcity.com>

Not in production, but close to (as in two weeks). They seem to work just fine.

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----

Sent: Tuesday, September 30, 2003 4:44 PM To: Multiple recipients of list ORACLE-L

Hi,

We're still on 817 but I was wandering about those new automatic features (Automatic Undo Management, Automatic Segment Space management,..) how well they work ? Anybody using in production with 9i2 ?

Stéphane

-----Original Message-----

Tanel Poder
Sent: Tuesday, September 30, 2003 5:49 AM To: Multiple recipients of list ORACLE-L

You still can have row migration when pctfree is set too low. ASSM doesn't resolve that. But yeah, ASSM removes the pctused and freelist/group issues (and introduces others :)

Tanel.

Original Message ----- To: Multiple recipients of list <mailto:ORACLE-L_at_fatcity.com> ORACLE-L Sent: Monday, September 29, 2003 7:09 PM

And why not? Forgetting about PCTFREE/PCTUSED is the main point of automatic segment space management. Initial/next are resolved by using LMT, because that's what takes care of your extent sizes.

--

Mladen Gogala
Oracle DBA

-----Original Message-----

Richard Foote
Sent: Monday, September 29, 2003 11:55 AM To: Multiple recipients of list ORACLE-L

Hi Mladen,

I can't help you with your problem, I haven't had the pleasure on NT or Tru64 but I just wanted to point out that you can't forget about PCTFREE even with ASSM.

Cheers

Richard

Original Message ----- To: Multiple recipients of list <mailto:ORACLE-L_at_fatcity.com> ORACLE-L Sent: Tuesday, September 30, 2003 12:44 AM

I have RDBMS 9.2.0.4 on RH 7.3 and I executed the following command:

create tablespace wizard
datafile '/oradata/WIZ/wizard01.dbf' size 3072M reuse autoextend on next 1024M maxsize 16385m
extent management local autoallocate
segment space management auto;

The whole system just hung, doing I/O like crazy. I was unable to killl one of the server processes which survived even shutdown abort, so I had to bounce thw whole box. No errors, no traces, no anything. Does anybody else have experience with this? Is there a known bug (not currently known to me) with a patch that I can install? I'd really like to use "SEGMENT SPACE MANAGEMENT AUTO" and forget about pctfree/pctused stuff.

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Mladen Gogala
Oracle DBA

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--

Author: Goulet, Dick
INET: DGoulet_at_vicr.com

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