6 Replies Latest reply on Oct 23, 2017 10:21 AM by Kanda-Oracle

    Concurrent issue

    Shaik

      Hi All

       

       

      My Instnace architeture

      DB: 11.2.0.3 - 2 Node RAC

      Apps: R12.1.3 single node

       

      Today early hours i have a issue with concurrent, all concurrent errored out and logs showing as below

       

      REP-0501: Unable to connect to the specified database.

      ORA-12516: TNS:listener could not find available handler with matching protocol stack

       

       

      REP-0501: Unable to connect to the specified database.

      ORA-12516: TNS:listener could not find available handler with matching protocol stack

       

       

      REP-0501: Unable to connect to the specified database.

      ORA-12516: TNS:listener could not find available handler with matching protocol stack

       

       

      REP-0309: Unable to connect to the specified database after three attempts.  Access denied.

       

       

       

      I can able to ping db nodes from apps node and i can connect apps schema from apps node, once restart the application services all went fine.

       

      This issue occure twice in couple of days, please suggest

       

       

      Regards

      Shaik