PH38533: CICS LISTENER BEING STOPPED WHEN IT HITS A RETRYABLEUNAVAILABLEEXCEPTION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Running CICS with Liberty, the following error is repeatedly
  issued to the Liberty messages.log file:
  
  javax.resource.spi.RetryableUnavailableException: limit
  for number of MessageEndpoint proxies reached. Limit =
  500
  
  After this point the JVM is no longer able to process any
  CICS LINK requests.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: The cicsts:link-1.0 feature used to     *
  *                      Link to Liberty programs stops after a  *
  *                      RetryableUnavailableException occurs.   *
  ****************************************************************
  A workload is running that causes many EXEC CICS LINK commands
  to be issued to call Java programs running in a Liberty
  JVMSERVER using the cicsts:link-1.0 feature.
  
  If too much work arrives into CICS causing a backlog of
  processing in the Liberty JVMSERVER a
  RetryableUnavailableException can occur.
  
  This causes all subsequent EXEC CICS LINKs to programs in the
  Liberty JVMSERVER to fail with PGMIDERR and RESP2 of 27.
  

Problem conclusion

• The cicsts:link-1.0 feature has been updated to better handle
  the  processing of work and ensure the feature does not stop
  in this scenario.
  

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:

  UI77066 UI77067

Modules/Macros

• DFJ@H444 DFJ@H445 DFJ@H467 DFJ@H490
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R00D PSY UI77066

     UP21/09/11 P F109 ¢

• R10D PSY UI77067

     UP21/09/11 P F109 ¢

Fix is available

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