PH60108: DFHSM0133 SOS USING CHANNEL(DFHTRANSACTION) ON EXEC CICS LINK REQUESTS BY LONG-RUNNING TASKS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A SOS has been caused by long running transactions that are
  doing many EXEC CICS LINK's that pass CHANNEL(DFHTRANSACTION) to
  a Java program. These long running transaction that pass
  CHANNEL(DFHTRANSACTION) on the EXEC CICS LINK causes DFHPGLE to
  getmain storage for the channel and containers on behalf of the
  programs. That storage for the channel and containers is not
  FREEMAINed until task termination. Since these are long running
  transactions, that storage is never freed and keeps building up
  on every EXEC CICS LINK passing CHANNEL(DFHTRANSACTION) to the
  Java program. This buildup of storage on all the LINKs
  eventually leads to an SOS
  
  Additional Symptom(s) Search Keyword(s): KIXREVPAD  container
  JVM server  EDSA  EUDSA
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: CICS may go short on storage when       *
  *                      using EXEC CICS LINK and specifying     *
  *                      CHANNEL(DFHTRANSACTION)                 *
  *                      explicitly.                             *
  ****************************************************************
  Using EXEC CICS LINK CHANNEL(DFHTRANSACTION) in a
  long running application with PG level 3 tracing active may
  cause CICS to go into an SOS condition in UDSA
  KEYWORDS DFHSM0133 msgSM0133 SM0133
  

Problem conclusion

• DFHPGCR has been amended so that storage acquired for
  PG level 3 tracing is correctly freed.
  

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:

  UI98517 UI98518

Modules/Macros

• DFHPGCR  DFHPGLE  DFHPGRE  DFHPGXE  DFHXCCR
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UI98724

     UP24/10/15 P F410 ¢

• R500 PSY UI98723

     UP24/10/15 P F410 ¢

Fix is available

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