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  1. #1
    Join Date
    May 2003
    Posts
    369

    Question Unanswered: semop failed error after fixpack installation on DB2

    After upgrading to fixpack 6 we cannot get DB2 to restart and
    come back online. We checked the db2diag.log output and found:

    db2diag.log output

    Trace has been turned off because semop failed. The maximum number of semphore
    undo entries per structure (SEMUME) limit maybe too low. The semop errno was

    0000 0016 ....


    Any tips on how to get DB2 to come back online after our fixpack upgrade? Thanks gurus

    Scott

  2. #2
    Join Date
    Sep 2002
    Posts
    456

    Re: semop failed error after fixpack installation on DB2

    Increase the value of SEMUME enviroment variable. The values I think are set in /etc/system file, check an entry for SEMUME and increase the value from default of 10.


    dollar

    Originally posted by mixxalot
    After upgrading to fixpack 6 we cannot get DB2 to restart and
    come back online. We checked the db2diag.log output and found:

    db2diag.log output

    Trace has been turned off because semop failed. The maximum number of semphore
    undo entries per structure (SEMUME) limit maybe too low. The semop errno was

    0000 0016 ....


    Any tips on how to get DB2 to come back online after our fixpack upgrade? Thanks gurus

    Scott

  3. #3
    Join Date
    Mar 2003
    Posts
    343
    Dollar489, can you give us a command to determine these environment variables. Also, where can I find the recommended values for db2?

  4. #4
    Join Date
    Aug 2001
    Location
    UK
    Posts
    4,650
    /etc/system is an ASCII file ...

    You can just look through that ..

    Any changes to the parms in this file will reflect on the next system start..

    HTH

    Sathyaram

    Originally posted by cchattoraj
    Dollar489, can you give us a command to determine these environment variables. Also, where can I find the recommended values for db2?

  5. #5
    Join Date
    Mar 2003
    Posts
    343
    a] We do not have a file called /etc/system - is it possible that on an SP cluster it lives somewhere else?

    And how do we determine the recommended values of these parms for db2?

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