IBM Support

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

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

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 number

    PH36102

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-04-07

  • Closed date

    2021-06-02

  • Last modified date

    2021-06-02

  • 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

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900"}]

Document Information

Modified date:
03 June 2021