IBM Support

PK48538: TRANSACTION BEING ORPHANED IN A RZCBNOTI PIIS WAIT STATE

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The customer has an application which is using request streams
    which are used to communicate between 2 tasks and RZ handles the
    routing. The transaction were being orphaned in RZCBNOTI PIIS
    type wait states. This problem is occuring because the NOTIFY
    not being posted to awake the task in the RZCBNOTI PIIS wait
    state.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS Users                               *
    ****************************************************************
    * PROBLEM DESCRIPTION: A Web Service provider task hangs       *
    *                      waiting on RZCBNOTI.                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A Web Service request is received by CICS which results
    in a new Web Service task being routed to another CICS
    region using RequestStreams and MRO. To initiate the new task
    the Web Service provider performs an RZ_CREATE followed by
    an RZ_SEND and RZ_LISTEN to await a response.
    The task loses control during the LISTEN call to transaction
    CSNC which has been posted by DFHIRP with a NOTIFY request with
    the response.
    CSNC calls DFHAPTC NOTIFY function with a token obtained from
    TCTTE field TCTE_USER_TOKEN which has not yet been initialized
    by the RZ_LISTEN process. The provider task is therefore not
    notified that data needs to be received. CSNC NOTIFY processing
    terminates and then suspends waiting for more work to do.
    The provider task is resumed, TCTE_USER_TOKEN is initialized
    and the task is suspended on a RZCBNOTI, waiting for the NOTIFY
    call which has already been processed.
    The requester task in the other region cannot send more data
    until the provider receives the first segment resulting in
    an IRLINK suspend.
    
    Additional keywords: HANG HUNG IRLINK T13P000 webservice
                         pipeline tcterzs
    

Problem conclusion

  • DFHAPTC has been altered to initialize TCTE_USER_TOKEN to zero.
    DFHCRNP has been altered to only call DFHAPTC NOTIFY if
    TCTE_USER_TOKEN is not zero, otherwise it will wait until
    the token has been set.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PK48538

  • Reported component name

    CICSTS V3 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2007-07-09

  • Closed date

    2007-07-18

  • Last modified date

    2007-09-04

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

    PK44475

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

    UK27649

Modules/Macros

  •    DESAPTC  DFHAPTC  DFHCRNP
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R500 PSY UK27649

       UP07/08/04 P F708

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.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.2","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.2","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
04 September 2007