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PH38510: UI LOGIN FAILED WITH 'CONNECT ECONNREFUSED' ERROR

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Connect ECONNREFUSED 9.30.128.37:27001 when trying to log in
    to Watson Machine Learning for z/OS User Interface
    

Local fix

  • Have a local customized java.security file and make sure the
    provider list has IBMJCE on the top of the provider sequence.
    Then set up the environment variable IBM_JAVA_OPTIONS pointing
    to the local customized java.security file.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All IBM Watson Machine Learning for z/OS                     *
    * V2.3.0 users                                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * IBM Waton Machine Learning for z/OS                          *
    * User Interface (UI) login failed with                        *
    * connect ECONNREFUSED error                                   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply corrective PTF when available                          *
    ****************************************************************
    This problem occurs when IBM Watson Machine Learning for z/OS
    base is configured and started on a Z LPAR where it has crypto
    express adapter card enabled and configured. At the same time,
    the search order of cryptography package providers which
    exploit hardware cryptograph such as IBMJCECCA is higher than
    the standard Java Cryptography Extension (JCE) provider in the
    JDK java.security file.
    

Problem conclusion

  • The connect ECONNREFUSED error is fixed in the Watson Machine
    Learning for z/OS core services component by specifying the
    supported cryptography package provider to the Java interface.
    After this PTF is applied, restart Waton Machine Learning for
    z/OS core services for the fix to take effect.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH38510

  • Reported component name

    MACHINE LEARNIN

  • Reported component ID

    5698ML100

  • Reported release

    230

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-06-28

  • Closed date

    2021-07-06

  • Last modified date

    2021-08-09

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

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

    UI76216

Modules/Macros

  • ALNIMLSV ALNREADM
    

Fix information

  • Fixed component name

    MACHINE LEARNIN

  • Fixed component ID

    5698ML100

Applicable component levels

  • R230 PSY UI76216

       UP21/07/07 P F107

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
10 August 2021