From: roy@mda.ca (Tim Roy)
Subject: Re: Help: SYSTEM Table Space Not Being Released
Date: 1996/04/04
Message-ID: <4k1gji$bj7@mowgli.mda.ca>#1/1
references: <4jsd3f$12a@mowgli.mda.ca> <31641BD2.330B@hq.icb.chel.su>
content-type: text/plain; charset=us-ascii
organization: MacDonald Dettwiler, 13800 Commerce Parkway, Richmond, BC, Canada  V6V 2J3
mime-version: 1.0
newsgroups: comp.databases.oracle


In article <31641BD2.330B@hq.icb.chel.su>, LEV  <lev@hq.icb.chel.su> wrote:
>Tim Roy wrote:
>-> 
>-> Hi,
>-> 
>-> I'm having the problem that Oracle is continually running out of
>-> SYSTEM table space.  It occurs with all of the several independent
>-> Oracle installations that we have at our site.  It looks like
>-> Oracle is not releasing any SYSTEM table space when we delete users.
>-> 
>-> For example:
>-> 
>-> Amount of free SYSTEM table space at start: 500K
>-> 
>-> Perform the following actions:
>->    - create user account
>->    - create tables and populate with data in user account
>->    - drop user account cascade
>-> 
>-> Amount of free SYSTEM table space at end: 400K
>-> 
>-> As a result we lose 100K of SYSTEM table space every time we run
>-> through this cycle.  It looks like the SYSTEM table space is
>-> never being freed because there is never any fragmentation
>-> of the SYSTEM table space.  We have checked for objects in the
>-> system that do not belong to any valid users and not found any.
>-> We have phoned Oracle and they do not have any answers.
>-> We're running Oracle 7 server release 7.0.16.4.0 on
>-> HP/UX machines.
>-> 
>-> Any suggestions, comments or help greatly appreciated.
>-> 
>-> --
>-> Tim Roy - roy@mda.ca            MacDonald Dettwiler and Associates
>->                                 13800 Commerce Parkway
>-> Phone:  (604)231-2429           Richmond, B.C., Canada
>-> Fax:    (604)278-2533           V6V 2J3-
>
>Try to create tablespaces USERS,TEMP and create users with
>   default tablespace USERS and default temporary tablespace TEMP

Yep, this is what we do.

>  
>By the way: I have troubles in my database when the free space
>   is near 100Mb and if it's near 10Mb - it's near a catastrophe.
>   If you operate in terms 100Kb, well, hm...

I choose a poor set of numbers for the example.  We usually start
with 100Mb of system table space and our data set is quite small.

Thanks for the advice. 





-- 
Tim Roy - roy@mda.ca		MacDonald Dettwiler and Associates
				13800 Commerce Parkway
Phone: 	(604)231-2429		Richmond, B.C., Canada
Fax:	(604)278-2533		V6V 2J3


