IBM Support

PH32280: IHS SERVER/PLUGIN LOOP AT STARTUP WITH ZERO BYTE PLUGIN-CFG.XML FILE

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APAR status

  • Closed as program error.

Error description

  • The server starts but doesn't get far enough to create a
    httpd.pid.  A dump of the looping address space shows a tcb
    doing reads over and over.  LE traceback of the thread shows:
    
      DSA      Entry       E  Offset
      1        lseek_o     -007E5548
      2        rp124       +00001572
      3        fgetc       +00000330
      4        lexFile     +00000044
      5        sxpParse    +00000058
      6        configParserParse
                           +0000010E
      7        websphereUpdateConfig
                           +000004F2
      8        websphereInit
                           +00000234
      9        as_post_config
                           +000001F0
      10       ap_run_post_config
                           +00000078
      11       main        +00001290
    

Local fix

  • don't use a zero byte plugin-cfg.xml file
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server V8.5 web   *
    *                  server plugin servers                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: The web server hangs on startup when    *
    *                      the plugin configuration file is        *
    *                      corrupt.                                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The web server hangs when starting and the plugin
    configuration file is corrupt. In this case, the size of
    plugin-cfg.xml was 0.
    

Problem conclusion

  • The code to read the plugin configuration did not handle an
    empty file propertly. End of file was not identified on the
    first read and code would cycle attempting to read from the
    configuration file.
    
    The fix for this APAR is targeted for inclusion in fix pack
    8.5.5.19 and 9.0.5.7. For more information, see
    'Recommended Updates for WebSphere Application Server':
    https://www.ibm.com/support/pages/node/715553
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH32280

  • Reported component name

    WEBSPHERE FOR Z

  • Reported component ID

    5655I3500

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-12-02

  • Closed date

    2020-12-07

  • Last modified date

    2020-12-07

  • 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

    WEBSPHERE FOR Z

  • Fixed component ID

    5655I3500

Applicable component levels

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850"}]

Document Information

Modified date:
08 December 2020