PI61436: MESSAGE DWW282I AFTER APPLYING UI21582 TO CICSVR AND BATCH LOGGING STOPPED.

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• CICS VR 5.1
  We applied some maintenance about 7 days ago to our production
  system.
  This included a fairly old PTF UI21582. With this PTF applied
  when we run 6 batch streams in parallel each night we get
  an expected temporary logger error message :
  DWW838I date time A TEMPORARY ERROR CONDITION OCCURRED DURING
  SYSTEM LOGGER OPERATION IXGWRITE FOR LOG STREAM logstream.
  SYSTEM LOGGER RETURN CODE CODE 00000008 REASON CODE 00000868
  ...but now reason code 865
  and
  
   DWW282I MAXIMUM POOL SIZE REACHED IN LSQA STORAGE
  
   Explanation:  CICSVR found that LSQA subpool used for VSAM
         logging buffers in CICSVR address space, is about full.
  
   System action: CICS VR terminates VSAM Batch Logging for
                  the job.
  
   Operator response: Decrease the number of concurrently
                      running batch jobs that use CICS VR
                      VSAM Batch Logging.
  
   System programmer response: Ensure that logstream offloading
                               parameters do not prevent logging.
  Before PI22190/UI21582 was applied only see the logger temporary
  error message was received but now with PTF UI21582 applied
  the logger task terminates which causes extended application
  recovery actions required to recover from this CICS/VR abend.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: This APAR affects CICS VR 5.1 and 5.2 users  *
  *                 that exploit DASD-only logstreams for        *
  *                 stressed VSAM batch logging.                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: Improved calculation of available CICS  *
  *                      VR Address Space private storage for    *
  *                      VSAM batch logger buffers.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  CICS VR is enhanced to use for VSAM batch logger buffers almost
  all available private space (except some amount of storage
  reserved for internal server support).
  This can reduce the risk of "out of storage" errors in CICS VR
  server when DASD-only logstreams are temporary unavailable.
  

Problem conclusion

Temporary fix

Comments

APAR Information

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

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

  UI43971 UI43972

Modules/Macros

• DWW1CNUP DWW1IRCM DWW3GEOS DWW3MROE DWW3MROI DWW3OSMS DWW9VTST
  

Fix information

• Fixed component name

  CICS VSAM RECOV

• Fixed component ID

  5655Y2400

Applicable component levels

• R510 PSY UI43971

     UP17/01/21 P F701

• R520 PSY UI43972

     UP17/01/21 P F701

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.