RE: Can not place rollback segment online

Shuan - If you go to
http://www.google.com/search?hl=en
<http://www.google.com/search?hl=en&ie=ISO-8859-1&q=max_rollback_segments> &ie=ISO-8859-1&q=max_rollback_segments
you can find a lot of information on this parameter. Oracle needs to allocate a finite amount of memory to manage rollback segments, so there must be a upper boundary somewhere. Unfortunately, you've hit it and must bounce your instance to change it. Just think of it as your lucky day. ;-)

Dennis Williams
DBA, 40%OCP
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Monday, February 03, 2003 6:49 AM
To: Multiple recipients of list ORACLE-L

Dear all DBAs,  

i'm using Oracle 8.0.5 on Linux 6.4 kernel 2.2.14. when i try to place the rollback segment online, it show error as below:  

SQL> ALTER ROLLBACK SEGMENT "RB28" ONLINE; ALTER ROLLBACK SEGMENT "RB28" ONLINE
*
ERROR at line 1:
ORA-01599: failed to acquire rollback segment (28), cache space is full
(currently has (29) entries)
 

If use oerr ora 1599, then
the solution it showed is to "take another rollback segment offline or increase the
parameter max_rollback_segments"  

so that means the current rollback segment number is exceeded the max_rollback_segment?
where's this max_rollback_segment?  

Thanks in advance.

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

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