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PH08740: APACHE V2.4 WEB SERVER PLUG-IN CRASHED CAUSED BY A CONFLICT WITHMOD_WAS_AP22_HTTP AND MOD_HPFILTER2.4

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APAR status

  • Closed as program error.

Error description

  • Problem was reported with Apache web server version 2.4.6 and
    WebSphere Plug-in 9.0.0.9 and using non-IBM vendor
    module mod_hpfilter2.4.
    
    Previous version of Apache 2.2 web server using the same non-IBM
    vendor module with the Plug-in software works as expected.
    

Local fix

  • Comment out the module mod_hpfilter2.4 from the httpd.conf file
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server web        *
    *                  server plugin users                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Crash occurs when using                 *
    *                      mod_hpfilter2.4 with WebSphere's        *
    *                      apache plugin module                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A crash occurs when using mod_hpfilter2.4 with
    mod_was_ap22_http or mod_was_ap24_http.
    

Problem conclusion

  • It appears that mod_hpfilter2.4 has defined an internal macro
    called "trim" which duplicates the name of an internal module
    used by WebSphere's apache module and this causes the crash to
    occur. WebSphere's plugin module has changed its macro name to
    a unique name to prevent this issue.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 8.5.5.16 and 9.0.5.0.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH08740

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-02-19

  • Closed date

    2019-02-26

  • Last modified date

    2019-04-02

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R850 PSY

       UP

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
14 October 2021