OA31176: Z/OS NFS CLIENT INCORRECT RECORD LENGTH RENAME CLOSE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer runs a proc that creates a new file on a NFS mount
  point.  The proc is run on the Z/OS system and uses the Z/OS
  client.  When the file is closed the lenght in the file header
  is incorrect, so the next access of the file results in an
  error.
  ERROR: Attempt to reference a page past end-of-file
  

Local fix

• Use the SAP Fsync option to force file syncing on close.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of zOS NFS client using NFSv4          *
  ****************************************************************
  * PROBLEM DESCRIPTION: After a rename, a file reported         *
  *                      incorrect filesize characteristics.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  In the process of renaming a file
  (from its source name to its target name),
  it is determined that the target name corresponds
  to an existing file that is opened.  The target file is given a
  "hidden rename", meaning when the target file is closed it will
  be removed.  The NFS-generated hidden name was mistakenly
  assigned to the SOURCE file, and so at its own closure, all
  cached data (including its size) was lost and the SOURCE file
  removed.
  

Problem conclusion

• A hidden rename for delayed file removal was incorrectly
  assigned to the wrong file.
  

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:

  UA51987

Modules/Macros

•    GFSCVNRM
  

Fix information

• Fixed component name

  NETWORK FILE SY

• Fixed component ID

  5695DF121

Applicable component levels

• RB1N PSY UA51987

     UP10/02/02 P F002

Fix is available

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