Re: ora-12545 reported from oracle 10g RAC under HP Unix 11i

From: DA Morgan <>
Date: Sun, 16 Nov 2008 15:20:13 -0800
Message-ID: <>

clement rajappa wrote:
> Hi
> We recently migrated to oracle10g ver 2 RAC under HP Unix 11i from
> oracle9i clustered environment under HP Tru64 unix.
> From the time we migrated we have been having client connectivity
> problem. It is very unstable with clients often getting ORA-12545
> error "connection failed because target host or object doesnot exist".
> 2 or 3 attempts later it will connect. Listeners are up in both the
> instances for more than 2 weeks now.
> Can someone let me know if they have experienced the same before. Any
> parameter settings are required extra in 10g as opposed to 9i.
> Require forums help in this regard.
> clement

Never seen it but it certainly looks like it may be more network than Oracle if it is intermittent. Post your listener.ora, sqlnet.ora and tnsnames.ora in case there is something there that may be incorrect.

Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington (replace x with u to respond)
Puget Sound Oracle Users Group
Received on Sun Nov 16 2008 - 17:20:13 CST

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