Comments on: ORA-12518 TNS listener could not hand off client connection http://www.squaredba.com/ora-12518-tns-listener-could-not-hand-off-client-connection-113.html Oracle DBA Forum, Articles, FAQs, Scripts, OCP Test Papers, Free Blog, DBA Training Wed, 03 Aug 2011 11:01:01 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: whathappen http://www.squaredba.com/ora-12518-tns-listener-could-not-hand-off-client-connection-113.html/comment-page-1#comment-196 whathappen Thu, 20 Aug 2009 16:37:24 +0000 http://www.squaredba.com/?p=113#comment-196 this problem almost root cause of limited server resources or configuration. try to check these 1. database server memory were enough for new connection 2. database connection parameters such as 2.1 dedicated server, pls checked processes parameter or query from v$resource_limit where resource_name=’processes’; checked max_utilization must less than Limit_value or 2.2 shared server, pls verify large_pool_size or check dispatcher were enough for all connection. 3. you may check related log such as listener.log, alert log, trace file, etc referrence : http://blogitknowledge.u-indy.com/database-services/oracle-troubleshoot/oracle-troubleshoot-ora-12518-tnslistener-could-not-hand-off-client-connection/ this problem almost root cause of limited server resources or configuration. try to check these

1. database server memory were enough for new connection
2. database connection parameters such as

2.1 dedicated server, pls checked processes parameter or query from v$resource_limit where resource_name=’processes’; checked max_utilization must less than Limit_value or
2.2 shared server, pls verify large_pool_size or check dispatcher were enough for all connection.

3. you may check related log such as listener.log, alert log, trace file, etc

referrence : http://blogitknowledge.u-indy.com/database-services/oracle-troubleshoot/oracle-troubleshoot-ora-12518-tnslistener-could-not-hand-off-client-connection/

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