PH36102: MIGR0285E: AN UNEXPECTED INTERNAL ERROR OCCURRED WITH EXCEPTION JAVA.IO.EOFEXCEPTION: UNEXPECTED END OF ZLIB INPUT STREAM ERROR

APAR status

• Closed as program error.

Error description

• WebSphere Post-Migration (WASPostUpgrade.sh) for cell
  migration, in this case node migration, fails with the
  following error:
  
  MIGR0285E: An unexpected internal error
  occurred with exception java.io.EOFException: Unexpected end of
  ZLIB input stream
  
  The issue was caused due to incorrect
  permissions and ownership of the shared libraries, which
  differs from the wasadm user that executed the WASPostUpgrade
  script, and the rest of the ownership of the WebSphere
  filesystem and profiles.
  
  This defect will be addressing
  checking of the file permissions and ownership for the shared
  libraries during WASPreUpgrade
  process, and providing a more
  informative message, and recommended action to improve the
  migration process.
  

Local fix

• The circumvention is to correct the incorrect permissions and
  ownership for the shared libraries, then re-execute the
  WASPreUpgrade process again to create the migration backup,
  
  followed by the WASPostUpgrade process, which should
  complete
  successfully.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: The WebSphere WASPostUpgrade tool fails *
  *                      with the exception:                     *
  *                      java.io.EOFException:                   *
  *                      Unexpected end of ZLIB input stream.    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When there is a directory in a shared library where the user
  running WASPreUpgrade has insufficient file permissions, the
  shared library jar that is created is corrupted. When the user
  attempts to call WASPostUpgrade with that backup directory, it
  fails with the error: MIGR0285E: An unexpected internal error
  occurred with exception java.io.EOFException: Unexpected end of
  ZLIB input stream.
  

Problem conclusion

• The WASPreUpgrade script was updated to fail when the user has
  insufficient file permissions on a directory in a shared library
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.21 and 9.0.5.9. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP

• R900 PSY

     UP