IBM Support

IT29478: HTTP SERVER ADAPTER THROWS "431 HEADER TOO LARGE" ERROR AFTER UPGRADING TO 5.2.6.4_1

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APAR status

  • Closed as program error.

Error description

  • HTTP server adapter throws "431 header too large" error after
    upgrading to 5.2.6.4_1.
    
    Upgrading from an older IBM B2B Integrator release to
    5.2.6.4_1 displays
    "431 header too large" error from the IBM B2B Integrator HTTP
    Server Adapters.
    
    Older IBM B2B Integrator releases used to have an entry in the
    http.properties
    file for conduit_header_buffer_size and increasing this
    property from 4092 to larger value used to resolve this error.
    But this property no longer exists in the 5.2.6.4_1
    http.properties file.
    

Local fix

  • None
    
    RTC 584096
    KK/KK
    

Problem summary

  • HTTP server adapter throws "431 header too large" error after
    upgrading to 5.2.6.4_1.
    

Problem conclusion

  • Introduced new property 'RequestHeaderSize' in http.properties.
    Configure the request header buffer size. Default value
    is 8192 bytes.
    
    Resolution Summary:
    A code fix is provided.
    
    Delivered In:
    5020604_2
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT29478

  • Reported component name

    STR B2B INTEGRA

  • Reported component ID

    5725D0600

  • Reported release

    526

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-06-18

  • Closed date

    2019-07-29

  • Last modified date

    2019-08-01

  • 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

    STR B2B INTEGRA

  • Fixed component ID

    5725D0600

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS3JSW","label":"IBM Sterling B2B Integrator"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.2.6","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}}]

Document Information

Modified date:
01 August 2019