PM92201: REDUCE THE STORAGE OVERHEAD WHEN PERFORMING AN INVOKE SERVICE COMMAND

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Your region goes Short on Storage when acting as a Web Service
  Requester to an outside vendor to retrieve documents. Storage
  utilization peeks to 15 times the document size during INVOKE
  WEBSERVICE COMMAND or first GET CONTAINER after INVOKE
  WEBSERVICE completes. SOS occurs in EUDSA.
  Further diagnosis, found that
  1)There is no ability at the moment for the pipeline to
    indicate it no longer requires the SET storage.
  2)The other issue is the codepage conversion required of
    the DFHWS-BODY container. DFHPGCR does not know how big
    the data will be after conversion. So it acquires a storage
    area that is guaranteed to be large enough for even the most
    expansive conversion process.
  Additional Symptom(s) Search Keyword(s): KIXREVSCB SOS EUDSA
  DFHWS-BODY PIPELINE DFHSM0133 SM0133
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Excessive storage usage on EXEC CICS    *
  *                      INVOKE SERVICE command.                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An application does an EXEC CICS INVOKE SERVICE command which
  receives a large response from the service provider.
  When processing the response, module DFHPIIW issues
  GET_CONTAINER_SET which results in a large getmain for the
  storage for the SET. This storage is then unnecessarily
  retained until end of task. Module DFHPGCR also allocates
  storage for codepage conversion but this may be more than is
  necessary. If PI level 2 trace is active then DFHPIIS traces
  the first 4000 bytes of the DFHREQUEST and DFHRESPONSE
  containers. To get the data it issues GET_CONTAINER_SET which
  again may may allocate more storage than required.
  The combined effect of these issues is to allocate and retain
  more storage than necessary which can cause CICS to
  become short of storage in the EUDSA and msgDFHSM0133
  may be issued.
  

Problem conclusion

• Modules DFHPGCR and DFHPIIW have been changed to free the SET
  storage obtained during SOAP processing once it is no longer
  required.
  Module DFHPISN has been changed to free the set storage for
  the work container DFHPARSE-OUTPUT when it is no longer
  required.
  DFHPGCR has been changed to allocate and use above the bar
  storage for codepage conversion of large CHAR containers,
  when requested by callers. This is used by DFHPISN and DFHPIIW.
  DFHPIIS has been changed to get container data into a 4k area
  for trace when required, for request and response containers.
  

Temporary fix

•             *********
              * HIPER *
              *********
  FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  PI07017 UI13306

Modules/Macros

•    DFHAPCR  DFHAPCR1 DFHAPRT  DFHECEAH DFHECEAM
  DFHECEAS DFHECEAT DFHECEB  DFHECEC  DFHECEI  DFHECIS  DFHECRL
  DFHECSC  DFHEIBAM DFHEIIC  DFHEIQBA DFHEPAS  DFHEPC   DFHEPEV
  DFHEPRL  DFHICXM  DFHIIRR  DFHJSON  DFHMLJS  DFHMLPC  DFHMLTF
  DFHMQTM  DFHPCXDF DFHPGCH  DFHPGCP  DFHPGCR  DFHPGCRT DFHPIAD
  DFHPIAT  DFHPIA1  DFHPICA  DFHPICC  DFHPIDM  DFHPIDSH DFHPIDSQ
  DFHPIDUF DFHPIII  DFHPIIW  DFHPILN  DFHPILSQ DFHPIMM  DFHPIPL
  DFHPIPM  DFHPIPM2 DFHPIPS  DFHPIRE  DFHPIRI  DFHPIRM  DFHPIRS
  DFHPIRT  DFHPISC  DFHPISF  DFHPISN  DFHPISN2 DFHPIST  DFHPITC
  DFHPITC1 DFHPITC2 DFHPITC3 DFHPITE  DFHPITH  DFHPITL  DFHPITQ
  DFHPITQ1 DFHPITRI DFHPITS  DFHPIUE  DFHPIWR  DFHPIWT  DFHPIXI
  DFHPIXM  DFHPIXO  DFHRLBR  DFHRLDM  DFHRLPK1 DFHRLPM  DFHRLRG1
  DFHRLRO  DFHRLRS1 DFHRLST  DFHRLVC  DFHRZDM  DFHRZIX  DFHRZLN
  DFHRZNR2 DFHRZRG2 DFHRZRM  DFHRZRS1 DFHRZSO  DFHRZSO1 DFHRZTA
  DFHRZTCX DFHRZTRI DFHRZTR1 DFHRZXM  DFHSJDM  DFHSJJI  DFHSJST
  DFHSJTH  DFHWBAP  DFHWBCL  DFHWBQM  DFHWSADH DFHWSATH DFHWSATR
  DFHWSATX DFHW2ER  DFHW2FD  DFHW2FI  DFHW2FR  DFHW2SD  DFHW2TS
  DFHW2W2  DFHXSTS  DFHZIS2
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R700 PSY UI13306

     UP14/02/21 P F402

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.