IBM Support

IT27964: MQ Appliance reports AMQ5531E messages when retrieving queue manager status through WebUI or REST

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APAR status

  • Closed as program error.

Error description

  • Reproduction of the error via MQ Appliance web UI:
    
    1. Start the IBM MQ Appliance web UI and open the "Status" menu;
    2. Select "MQ > Queue Manager Status"; Open the MQ Queue Manager
    Error log,
    3. The last 4 or 5 error messages will show the following error
    message:
    
    AMQ5531E: Error locating user or group in LDAP
    
    EXPLANATION:
    The LDAP authentication and authorization service has failed in
    the ldap_search call while trying to find user or group 'root'.
    Returned count is 0. Additional context is
    '(&(objectClass=user)(cn=root))'.
    ACTION:
    Specify the correct name, or fix the directory configuration.
    There may be additional information in the LDAP server error
    logs.
    
    An additional observable reproduction of the error via MQ
    Appliance REST API:
    
    1. Request the following URL:
    https://<MQApplianceAddress>:5554/mgmt/status/default/QueueManag
    ersStatus
    
    2. Open the MQ Queue Manager Error log, the last error messages
    will show the aforementioned error message.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This affects users of the IBM MQ Appliance who have configured
    user authentication of messaging connections to use an LDAP
    server, via an IDPWLDAP AUTHINFO objectttempt to query MQ queue
    manager status through the WebUI (Status->MQ->Queue Managers
    Status) or REST API
    (https://<MQApplianceAddress>:5554/mgmt/status/default/QueueMana
    gersStatus).
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    A logic omission meant that the operation to retrieve the queue
    manager status attempted to connect to the queue manager(s) as
    the root user, instead of the internal mqsystem user ID.
    
    This caused the root user's identity to be incorrectly queried
    against the LDAP server, which failed and generated the AMQ5531E
    error message. This also meant that the returned status
    information was incomplete.
    

Problem conclusion

  • The internal logic used by these status commands has been
    corrected to execute as the internal mqsystem user ID.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.1 CD    9.1.4
    v9.1 LTS   9.1.0.3
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT27964

  • Reported component name

    IBM MQ APPL M20

  • Reported component ID

    5725Z0900

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-02-01

  • Closed date

    2019-05-10

  • Last modified date

    2019-08-22

  • 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

    IBM MQ APPL M20

  • Fixed component ID

    5725Z0900

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
22 August 2019