DBAsupport.com Forums - Powered by vBulletin
Results 1 to 2 of 2

Thread: Error TNS-12502 frequent and consistently happening in Listener.log

  1. 02-20-2009, 06:38 AM #1
    danghongsinh
    danghongsinh is offline Junior Member
    Join Date
    Mar 2007
    Posts
    21

    Error TNS-12502 frequent and consistently happening in Listener.log

    Hi all,

    My DB is : RAC 10.2.0.4
    OS Linux Redhat 5 64 bit.

    I saw error : "TNS:listener received no CONNECT_DATA from client" frequent and consistently happening in Listener.log every 3 minutes.

    My client connect from PHP.

    Please help me,

    Thanks in advance,
    Sinh
    Reply With Quote Reply With Quote
  2. 02-20-2009, 06:48 AM #2
    PAVB's Avatar
    PAVB
    PAVB is offline Senior Advisor
    Join Date
    Mar 2007
    Location
    Ft. Lauderdale, FL
    Posts
    3,555
    Once every three minutes is not that bad, most probably one or more of your users are attempting to connect with a faulty tnsnames entry. Be sure your tnsnames.ora file entries are correct then distribute the file to the user community.
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Click Here to Expand Forum to Full Width