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adminctl fails with "AH00534: httpd: Configuration error: No MPM loaded"

  • 1.  adminctl fails with "AH00534: httpd: Configuration error: No MPM loaded"

    Posted 04/18/23 10:23 PM

    When I tried to start IHS admin server, it failed with the message below. What is the possible cause?
    ```
    /opt/IBM/HTTPServer90/bin/adminctl -k start
    AH00534: httpd: Configuration error: No MPM loaded.
    ```



    ------------------------------
    Yoshiki Yamada
    IBM Japan
    ------------------------------


  • 2.  RE: adminctl fails with "AH00534: httpd: Configuration error: No MPM loaded"
    Best Answer

    Posted 04/18/23 10:23 PM

    One of the possible cause is that you are using admin.conf which had been used for IHSv8.5 or earlier version. Please check <IHSv9_ROOT>/conf/admin.conf and you will see the following lines.

    # Use worker if the current build uses dynamic MPMs. <ifModule !worker.c> LoadModule mpm_worker_module modules/mod_mpm_worker.so </ifModule>
    And I assume this part is missing in your admin.conf. Kindly try to add the lines and see if you can start IHS admin server.



    ------------------------------
    Yoshiki Yamada
    IBM Japan
    ------------------------------



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