PH62608: DFHWB0002 SEVERE ERROR (CODE X'071B') IN MODULE DFHWBCL.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Automation is doing a SET TASK PURGE on a task.  The task is
  currently running its receive SSL data and the first time that
  CICS  is able to process this purge is when we go into a
  WAIT_MVS call.
  
  The WAIT_MVS call returns with an PURGED TASK_CANCELLED
  response which starts to propagate up the return stack okay
  until we return from the gsk call which means we lose the fact
  that a purge has happened and it gets turned into a generic
  CLIENT ERROR causing the severe error to happen.
  
  This APAR is to change the processing to ensure that the
  PURGED TASK_CANCELLED is correctly propagated back through the
  stack, and handled correctly rather than causing a SVC dump.
  

Local fix

• It is not logical to have RESPWAIT higher than total runtime
  timeout.
  
  Setting a RESPWAIT value lower than the TMON timeout resolved
  the problem where the customer's monitor (TMON) was purging
  the task after it exceeded the defined TMON total runtime of
  95 seconds. However, that task had made an outbound web
  service request and had set a value of 120 seconds for the
  RESPWAIT value. The pipeline is told it can wait up to
  120 seconds for a response, but TMON won't let the task run
  for any more than 95 seconds.
  
  The solution in those cases was to ensure the RESPWAIT setting
  is less than any monitor timeout setting such as total
  runtime. RESPWAIT is documented at this URL:
  
  https://www.ibm.com/docs/en/cics-ts/5.6?topic=resources-pipelin
  e-attributes
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: A task is purged while it waits for a   *
  *                      RECEIVE_SSL_DATA to complete.           *
  *                      This causes a DFHWB0002 severe error    *
  *                      (code X'071B') in DFHWBCL and the       *
  *                      transaction is not purged.              *
  ****************************************************************
  A transaction issues a WEB CONVERSE or WEB RECEIVE but
  while it is waiting for a RECEIVE_SSL_DATA to complete a
  SET TASK PURGE is issued to cancel the task.
  This results in a severe error in DFHWBCL and a system dump.
  
  DFHWB0002 applid A severe error (code X'071B') has occurred in
  module DFHWBCL.
  
  The EXEC CICS WEB command gets an error response and the
  transaction continues.
  

Problem conclusion

• Processing is corrected to abend the purged transaction AEXY
  without any severe error in DFHWBCL.
  

Temporary fix

Comments

APAR Information

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

  PH58480

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

  UI98117 UI98133

Modules/Macros

• DFHSOCK  DFHSOSE
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UI98117

     UP24/08/23 P F408

• R500 PSY UI98133

     UP24/08/23 P F408

Fix is available

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