PI87928: STORAGE LEAK IN CICS ECDSA WITH PROGRAM_LIST ELEMENTS NOT BEING FREEMAINED. 17/12/27 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Using CICS TS 5.4, a long running transaction which uses
  a requester pipeline and makes EXEC CICS INVOKE WEBSERVICE
  command see a gradual increase in storage in CICS ECDSA.
  A CICS system dump shows that this transaction owns 16M of
  program_list elements obtained by DFHPISH.
  L803E PI 0C17 PISN  ENTRY CALL_HEADERS
  L803E PI 0C80 PISH  ENTRY RECEIVE-RESPONSE   2,,,00000000
  L803E PI 0C82 PISH  DATA  RECEIVE-RESPONSE
  L803E SM 0301 SMGF  ENTRY GETMAIN       380,YES,00,CICS
  L803E SM 0302 SMGF  EXIT  GETMAIN/OK    28A4D728
  but there is no corresponding freemain of the program_list
  storage after the user header handler program completes.
  .
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users with UI33893, UI40004 or      *
  *                 UI40033 applied                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Task storage build up for long-         *
  *                      running task issuing INVOKE SERVICE     *
  *                      commands.                               *
  ****************************************************************
  * RECOMMENDATION: .                                            *
  ****************************************************************
  A long running task is acting as a web service requester with at
  least 1 SOAP header handler installed in CICS.  A SOAP message
  is processed by CICS and as part of this processing a GETMAIN is
  issued for a PROGRAM_LIST. Before PI46768 this PROGRAM_LIST
  storage would have been freemained after calling the SOAP
  handlers, but now that freemain is bypassed by CICS and the
  storage freed at task termination.
  This is not normally a problem for short lived tasks, but is for
  long running tasks making muliple INVOKE SERVICE calls.
  
  Keyword: ECDSA
  

Problem conclusion

• UI33893 UI34900 UI41628 UI40004 UI41629 UI42818 UI43346
  UI40033 UI41525 UI42813 UI43343
  DFHPISN has been changed to ensure the PROGRAM_LIST storage is
  always freemained.
  

Temporary fix

Comments

• ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  ×**** PE19/03/22 FIX IN ERROR. SEE APAR PH10066  FOR DESCRIPTION
  

APAR Information

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

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

  PI91289 UI52923 UI52924 UI52925

Modules/Macros

• DFHPISN
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI52925

     UP17/12/28 P F712 {

• R800 PSY UI52923

     UP17/12/29 P F712 {

• R900 PSY UI52924

     UP17/12/29 P F712 {

Fix is available

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