ORA-1555

From: Sanjay Mishra <smishra_97_at_yahoo.com>
Date: Sat, 3 Feb 2007 21:13:40 -0800 (PST)
Message-ID: <452290.23574.qm@web51315.mail.yahoo.com>

Hi everybody    

  I have seen several time ORA-1555 error in few of the Prod Database. SOme of them have very big UNDO tablespaces. All are 9i Databases. What are the other option that need to be checked for such issue beside increasing the space as some of the database has UNDO tablespace around 50-150G    

  Is it good to create new undo tablespace and make it default in such scenario and later on dropped the old. Do somebody has set of UNDO checking query that can be ran at some particular point to really see if that big UNDO are really been used so that it can be resized.    

  I am thankful for any suggestion for monitoring such ORA-1555 as well as query to check UNDO segment space.    

  TIA
  Sanjay  

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http://www.freelists.org/webpage/oracle-l Received on Sat Feb 03 2007 - 23:13:40 CST