PM86628: WHEN ACQUIRE CONNECTION FOR IPIC CONNECTION FAILS, STORAGE IS ORPHANED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If there are repeated attempts to acquire an IPIC Connection
  that fails, there is a storage leak which can result in a
  DFHSM0133 message.
  
  Trace shows that DFHWBCL is doing an OPEN_SESSION. During the
  processing of the OPEN_SESSION, storage is getmained for
  WBCMCSBF from the WBGENRAL subpool. If the OPEN_SESSION fails,
  then the CISC transaction ends without ever freeing the storage
  it getmained for WBCMCSBF
  
  This results in a storage leak and could eventually lead to an
  SOS should this happened repeatedly.
  
  Additional Symptom(s) Search Keyword(s): KIXREVRJL
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: When acquire connection for IPIC        *
  *                      connection fails, storage WBCMCSBF is   *
  *                      not FREEMAINED.                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An IPIC acquire fails because it experiences sockets connect
  failure.DFHWBCL open_session is responsible for creating the
  web session from client to server, it allocates storage WBCMCSBF
  which is used as web session peek header buffer. The code will
  not freemain WBCMCSBF storage if its connection fails.
  CICS will go into SOS after lots of IPIC acquire failure because
  socket connect fails.
  Addtional Keywords: Short on Storage
  

Problem conclusion

• DFHWBCL has been changed to tidy up WBCMCSBF storage after IPIC
  client connecting failure.
  

Temporary fix

• 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:

  PM86724 UK94191

Modules/Macros

•    DFHWBCL
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R700 PSY UK94191

     UP13/05/17 P F305

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.