IBM Support

PH38053: ADD NEW SERVER SCRAPE DURATION METRIC FOR PROMETHEUS METRICS ENDPOINT

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APAR status

  • Closed as program error.

Error description

  • A new custom gauge metric provided by the metrics.ear
    application should return the amount of time each server takes t
    scrape and return its metrics.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: The /metrics endpoint provided by the   *
    *                      metrics.ear application can             *
    *                      timeout/take a                          *
    *                      long time to return.                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The /metrics endpoint provided by the metrics.ear application
    can
    timeout/take a long time to return, depending on the time it
    takes
    for each individual server to report back with its own metrics.
    We
    need the /metrics endpoint to add its own Prometheus metrics
    (was_scrape_duration_seconds) to indicate how long those
    individual
    server responses take. This will allow better visibility into
    whether or not there are one or more particularly slow servers
    that
    are slowing everything down.
    A new custom gauge metric is being provided by the metrics.ear
    application that returns the amount of time each server takes
    to scrape and return its metrics.
    

Problem conclusion

  • The code was updated to include the new metric.
    
    The fix for this APAR is targeted for inclusion in fix pack
    8.5.5.21 and 9.0.5.9.. 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

    PH38053

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-06-11

  • Closed date

    2021-09-07

  • Last modified date

    2021-09-07

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850"}]

Document Information

Modified date:
08 September 2021