ORA-28547 - "connection to server failed, probable Oracle Net admin error" when Database sessions touched 18,000
Date: Thu, 10 Jan 2008 06:08:41 +0530
During a Benchmark Run as Number of Database sessions increased to 18000 following Error Occured:-
ORA-28547 "connection to server failed, probable Oracle Net admin error"
Qs Will increasing the Number of Listener processes help?
ACTION - Listener processes have been increased from 12 to 16. But need to check if the error re-occurs or is resolved.
Qs Could it be a Network bandwidth issue?
Currently all 16 Listener processes sit on the SAME ( 1 ) Network Card, but use different Port Numbers.
Database setup - Shared Server (MTS)
Oracle 10.2.0.3 (NON-RAC)
Will share any info needed.
$ oerr ora 28547:-
*Action: Check Oracle Net administration in the following ways:
// -- When using TNSNAMES.ORA or an Oracle Names server, make sure
// that the client connection to the ORACLE server uses
// the correct service name or SID.
// -- Check LISTENER.ORA on the connection end point's host machine
// to assure that this service name or SID refers
// to the correct server.
// -- Confirm in TNSNAMES.ORA or the equivalent service definition
// that the connect string does NOT contain (HS=).
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http://www.freelists.org/webpage/oracle-l Received on Wed Jan 09 2008 - 18:38:41 CST