RE: Coalescing tablespace

You mean "make your PCTINCREASE 0 so that SMON will *not* coalesce them." Right? Some comments:

• You don't want SMON coalescing your tablespaces. It is a complete waste of time. Oracle coalesces on demand during a CREATE statement.
• The SMON coalesce feature was added under protest by the smart people in Server Technologies development, in response to pressure from Marketing and Support so that the Oracle RDBMS would look better in brochures.
• Thank goodness the developers made SMON smart enough to *not* coalesce freespace in any tablespace with PCTINCREASE set to 0 (which is what it *should* be set to almost everywhere).
• You can turn off SMON's ridiculous CPU-consuming, lock-holding behavior by setting event 10269.

Cary Millsap
Hotsos Enterprises, Ltd.
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-----Original Message-----
Mladen Gogala
Sent: Sunday, October 26, 2003 8:09 PM
To: Multiple recipients of list ORACLE-L

Well, having in mind that you're working on version 7 (chuckle) , you should
make your tablespaces have PCTINCREASE 0 (alter tablespace default storage...)
so SMON will coalesce them. You may also try (I'm not sure whether this has
existed before 7.3) with alter tablespace coalesce, which should mark the
tablespace to be coalesced by SMON at he first opportunity. I'm afraid that
PCTINCREASE 0 is your best option.

On 2003.10.26 20:04, Ross Collado wrote:
> Hi,
> For those like me still working on an Oracle 716 (hold the laughs),
how do
> we coalesce a tablespace?
> Rgds,
> Ross
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Ross Collado
> INET: Ross.Collado_at_techpac.com
>
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-- 
Mladen Gogala
Oracle DBA
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Mladen Gogala
  INET: mgogala_at_adelphia.net

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-- 
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Author: Cary Millsap
  INET: cary.millsap_at_hotsos.com

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