DBA_TEMP_FILES.MAXBYTES is wrong

From: Herring Dave - dherri <Dave.Herring_at_acxiom.com>
Date: Tue, 31 May 2005 08:10:03 -0500 (EST)
Message-ID: <7ED53A68952D3B4C9540B4EFA5C76E367E7045@CWYMSX04.Corp.Acxiom.net>

Has anyone had an issue with MAX* columns within DBA_TEMP_FILES being wrong?  

I've got one temp tablespace, type temporary, defined for all users and the default at the database level (9.2.0.4 on Tru64). This temp tablespace has 6 tempfiles defined, each created with a maxsize of 40,001M (see results of an 'ls -l' below):  

-rw-rw---- 1 oracle dba 41944121344 May 29 20:43
/u01/oradata/sid1/temp02.dbf

-rw-rw---- 1 oracle dba 41944121344 May 29 21:41
/u02/oradata/sid1/temp03.dbf

-rw-rw---- 1 oracle dba 41944121344 May 29 20:56
/u03/oradata/sid1/temp04.dbf

-rw-rw---- 1 oracle dba 41944121344 May 29 21:42
/u04/oradata/sid1/temp05.dbf

-rw-rw---- 1 oracle dba 41944121344 May 29 21:01
/u05/oradata/sid1/temp06.dbf

-rw-rw---- 1 oracle dba 41944121344 May 29 21:42
/u06/oradata/sid1/temp01.dbf
 

Yet when I query DBA_TEMP_FILES I get the following:  

column file_name format a40

SELECT file_name

     , bytes/1024/1024 mb

     , maxbytes/1024/1024 max_mb

  FROM dba_temp_files

 ORDER BY file_name;  

FILE_NAME                                        MB     MAX_MB

---------------------------------------- ---------- ----------



/u01/oradata/gmdwit/temp_two02.dbf            40001      .0625




/u02/oradata/gmdwit/temp_two03.dbf            40001      .0625




/u03/oradata/gmdwit/temp_two04.dbf            40001      .0625




/u04/oradata/gmdwit/temp_two05.dbf            40001      .0625




/u05/oradata/gmdwit/temp_two06.dbf            40001      .0625




/u06/oradata/gmdwit/temp_two01.dbf            40001      .0625


 

I checked the view definition for DBA_TEMP_FILES and it appears that the value for MAXBYTES is pulled from SYS.X$KTFTHC.KTFTHCUSZ, which is apparently also wrong.  

Has anyone else run into this? It's sure hard to write a script to detect a low temp space issue when I can't determine the max size of my temp space.  

Thanks.  

Dave

---

Dave Herring, DBA

Acxiom Corporation

3333 Finley

Downers Grove, IL 60515

wk: 630.944.4762

<mailto:dherri_at_acxiom.com <mailto:dherri_at_acxiom.com> >

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Received on Tue May 31 2005 - 09:13:07 CDT