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Tech Tip : CA Single Sign-On : AH00288: scoreboard is full, not at MaxRequestWorkers

  • 1.  Tech Tip : CA Single Sign-On : AH00288: scoreboard is full, not at MaxRequestWorkers

    Posted 03-07-2019 03:22 AM

    Issue:

     

    We're unning a CA Access Gateway (SPS) and this one reports the error :

    [Fri Mar 01 09:53:55.553673 2019] [mpm_worker:error] [pid 8594:tid
    4152100608] AH00288: scoreboard is full, not at MaxRequestWorkers

    We'd like to know how to fix it.

     

    Environment:

     

    Policy Server 12.52SP1CR01 on RedHat 6;
    CA Access Gateway (SPS) 12.52SP01CR01 on RedHat 6;

     

    Cause:

     

    The error is a known bug in Apache, which is solved in Apache 2.4.25 :

    Bug 53555 - Scoreboard full error with event/ssl

    A high-traffic web server using event MPM and mostly receiving HTTPS
    requests frequently got the error "scoreboard is full, not at
    MaxRequestWorkers" and showed very bad performance.

     

    [...]

     

    Fixed in 2.4.25

    https://bz.apache.org/bugzilla/show_bug.cgi?id=53555

     

    The CA Access Gateway (SPS) 12.52SP1CR01 run Apache 2.4.4

    Third-Party Software Acknowledgments

    Apache HTTP Web Server 2.4.4

    https://docops.ca.com/ca-single-sign-on/12-52-sp1/en/third-party-software-acknowledgments

     

    The CA Access Gateway (SPS) 12.52SP1CR09 runs Apache 2.4.33 which will
    solve this issue.

     

    CA Access Gateway

     

    | SalesForce | Internal | Issue Description                      |
    | Case       | Defect   |                                        |
    | Number     | ID       |                                        |
    |------------+----------+----------------------------------------|
    | 00949107   | DE342765 | OpenSSL is upgraded to OpenSSL 1.0.2o. |
    |            |          | Apache is upgraded to Apache 2.4.33.   |

     

    https://docops.ca.com/ca-single-sign-on/12-52-sp1/en/release-notes/cumulative-releases/defects-fixed-in-12-52-sp1-cr09#DefectsFixedin12.52SP1CR09-smsps

     

    Please note that Policy Server 12.52SP1CR01 is Out of Support :

    CA Single Sign-On (formerly CA SiteMinder) Release and Support
    Lifecycle Dates

     

    12.52 February 28, 2019 - EOS

     

    https://support.ca.com/us/product-content/status/support-life-cycle/indexes/ca-single-sign-on-release-and-support-lifecycle-dates.html

     

    Resolution:

     

    Upgrade the CA Access Gateway (SPS) to the latest version in order
    to get the Apache running on 2.4.33.

     

    KB : KB000128935



  • 2.  Re: Tech Tip : CA Single Sign-On : AH00288: scoreboard is full, not at MaxRequestWorkers

    Posted 03-07-2019 11:12 AM

    Thank you for sharing this tip with the community Patrick!

    Tech Tip : CA Single Sign-On : AH00288: scoreboard is full, not at MaxRequestWorkers