PH07190: IT IS DIFFICULT TO DEBUG PROBLEMS WHEN THE LIBERTY SERVER CONNECTS TO A DOWNLEVEL ANGEL PROCESS

APAR status

• Closed as program error.

Error description

• Each version of the WebSphere Liberty server expects to
  connect to a specific version of the Angel process.  When
  the version of the Angel process is lower than the server
  expects, problems can occur or some services which the
  server provides may not be available.  For example, the
  following message may result from the angel being downlevel,
  even though the server reports that it has connected to the
  angel process.
  ?CWWKB0104I: Authorized service group KERNEL is not availabl
  e.
  In this instance, the server should indicate that it has
  connected to a downlevel angel process.  This will make it
  clearer that the incompatibility should be resolved before
  debugging continues.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty for z/OS                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: A Liberty server does not indicate when *
  *                      it has connected to a downlevel angel   *
  *                      process.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a Liberty server connects to an angel process, the
  following message is printed:
  CWWKB0122I: This server is connected to the default angel
  process.
  If that angel process is at a version less that the version the
  server expects, certain functions or capabilities may not be
  available to that server.  It would be helpful to know that the
  server has connected to a downlevel angel process, so that debug
  efforts can focus on resolving the incompatibility first.
  

Problem conclusion

• The following message was added, and is printed whenever a
  Liberty server connects to an Angel process whose version is
  less than the version the server expected:
  CWWKB0127W: The current angel version is earlier than the
  version that the server expects. Update the angel version to the
  latest available version.
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 19.0.0.1.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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:

Fix information

• Fixed component name

  LIBERTY PROF -

• Fixed component ID

  5655W6514

Applicable component levels

• RCD0 PSY

     UP