PI99768: Memory leak issue in AD agent causes Endevor API batch call to ABEND - THIS APAR IS FOR AD

APAR status

• Closed as program error.

Error description

• IBM Application Discovery Connector for Mainframe v5.0.3
  FMID HALT503 plus any and all previous PTFs.
  
  While repeatedly calling the Endevor API ENA$NDVR, it was
  observed that storage was being exhausted, possibly a memory
   leak, and this was causing the API to abend.
  
  The side effect seemed to be that the Connector started task did
  not release the exclusive ENQ it had acquired on the Endevor
  dataset and other jobs which required access were not able to
  run until the started task was stopped.
  
  Observed error messages in the AD connector started task joblog:
  IAYCONN  ZLG1029E ERROR returned from ENDEVOR RC=0020,
   REASON=0015 NDVPROD
  
  CEE0813S Insufficient storage was available to satisfy a get
  storage (CEECZST) request.
  

Local fix

• n.a
  

Problem summary

• Storage leak caused by Endevor API
  
  12/03/2018 07:47:07 IAYCONN  ZLG1029E ERROR returned from
  ENDEVOR RC=0020, REASON=0015 NDVPROD  REGUL    TXTINFO  PGMCB2B
  #######  TCP  ERROR     2018/03/09     16:10:06
  SEND1  ERRNO: 00032
  #######  TCP  ERROR     2018/03/10     05:02:59
  SEND1  ERRNO: 00032
  CEE0813S Insufficient storage was available to satisfy a get
  storage (CEECZST) request.
            The traceback information could not be determined.
  <> LEAID ENTERED (LEVEL 02/26/2016 AT 17.55)
  <> LEAID PROCESSING COMPLETE. RC=4
  

Problem conclusion

• CA was unable to provide a fix for the storage leak caused by
  the Endevor API.  The code change in this PTF calls the Endevor
  API using a batch job submitted by the AD Connect started task
  instead of a direct program call.  When the batch job completes,
   any user region storage not freed by the Endevor API is
  released by the system, so this prevents the AD connect address
  space from slowly leaking storage.  This workaround is not a
  general solution and should only be used for cases where a
  customer site experiences the same problems when retrieving
  source from Endevor.
  

Temporary fix

• n.a
  

Comments

APAR Information

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

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

Fix information

• Fixed component name

  EXP FOR Z/OS HO

• Fixed component ID

  5655EXP23

Applicable component levels