PM73250: USING IPIC CONNECTIONS AND RECEIVING DFHIS1023 X'061D' ABENDS AND TASKS GETTING HUNG.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Using IPIC connections you start seeing the following message
  hung TASKs.
  .
  DFHIS1023 date time applid Conversation error (code X'061D')
            occurred on IPIC session name in IPCONN ipconn.
  .
  You will see the following CICS Internal Trace entry:
  .
  061D ISRR  *EXC* - NO_ISSB_AVAILABLE -
                     IPCONN(IPICNAME)
                     MSG_TYPE(DATA)
                     CONV_ID(00000531)
                     CONV_STATE(B)
                     REQ_TYPE(  )
                     MSG_SEQ(000001)
                     LIC CHAIN_SEQ(000001)
                     TRAN(TRAN)
                     CCSID(-1   )
  .
  Problem is due to all the RECEIVE Sessions being held by
  TASKs that are no longer in the system.
  .
  Additional Symptom(s) Search Keyword(s):
  .
  KIXREVEPH
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS TS User                             *
  ****************************************************************
  * PROBLEM DESCRIPTION: Message DFHIS1023 coversion error code  *
  *                      X'061D' and task getting hung when      *
  *                      CICS process CTG request over IPIC.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A ECI request comes from CTG over IPIC, the task CPMI attached
  but get queued on TCLASS, CTG will send a EXPD with purge type
  TIMEOUT to CICS after the ECI request TIMEOUT expires. DFHISRR
  calls DFHISEM.PURGE_CONVERSATION and ABEND_CONVERSATION to
  resume CPMI for ABEND process. Neither dfhisxm.release_xm_client
  nor dfhisis_send_error free receive ISSB because DFHISEM
  ABEND_CONVERSATION set issb_timeout_rcvd and issb_purged to
  true. When more and more ECI requests time out, all the RECEIVE
  sessions will being held by tasks and DFHISRR will report
  exception NO_ISSB_AVAILABLE which leads to DFHIS1023
  conversation error (code X'061D') report and task hung.
  

Problem conclusion

• DFHISXM routine release_xm_client has been changed to free the
  issb if issb_timeout_rcvd is set to true.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PM54488

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

  UK90435

Modules/Macros

•    DFHISIS  DFHISIST DFHISXM
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R500 PSY UK90435

     UP13/01/09 P F301

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.