PM20699: ABEND878-14 RUNNING ANALYZE ON LARGE AREA

APAR status

• Closed as program error.

Error description

• ABEND878 RC14 running ANALYZE upon a very large Area.
  The ABENDS878 is caused by R9 having a negative value on the
  GETMAIN being attempted. It seems to fail after the ANALYZE for
  the area is complete, however no report comes out.
  Another symptom is an HPFP ABEND3006.
  
  Additional issue addressed: ABEND0C7 in HFPA5T20
  processing large AREA with ANALYZE command.
  
  Keywords: S878 S0C7 ABENDS0C7
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of High Performance Fast Path      *
  *                 Utilities Fast Path Advanced Tool Version 3  *
  *                 Release 2 (FMID: H31A320).                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: 1.ABENDS878 RC14 running HFPA5XT0 due   *
  *                        to a huge DEDB record in the user     *
  *                        DEDB area. HFPA5XT0 could not handle  *
  *                        such a large record, therefore the    *
  *                        routine will be adjusted to handle    *
  *                        larger records.                       *
  *                      2.ABENDS0C7 occurred when the total     *
  *                        number of "IOVF used CI" was          *
  *                        6 digits.                             *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  1.FPA ANALYZE stacks CI RBA information in the internal table.
    When all entries of the table consumed, then the table will be
    expanded by GETMAINing extended table.
    The GETMAIN failed with S878 system code due to the negative
    value of storage size to be obtained.
  2.FPA ANALYZE(HFPA5T20) got the system exception when it
    calculates the standard deviation of the total number of IOVF
    used CI.
    This abend0C7 occurs when the total number of "IOVF used CI"
    and the total number of "DOVF used CI" are greater than
    100000.
  

Problem conclusion

• 1.The internal table will be extended every time when all
    entries of the table consumed.
    The total number of entries is saved in the half word field so
    that the number can be up to 32,767 represented by half word
    signed binary.
    When the increased number is greater than 32,767, then half
    word overflow condition happens and the obtained value form
    the half word field come to be negative value.
    Thus GETMAIN failure with S878 happened.
  
    HFPA5XT0 has been modified from LH/STH to L/ST to load/store
    from/to full word field.
  
  2.HFPA5T20 did not prepare the field to square the total number
    of "IOVF used CI"(PL5). It is modified to use the field
    defined with PL10 to square.
  320Y
  HFPA5T20
  HFPA5WKG
  HFPA5WK2
  HFPA5W00
  HFPA5XT0
  

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:

  UK59993 PM44385

Modules/Macros

•    HFPA5T20 HFPA5WKG HFPA5WK2 HFPA5W00 HFPA5XT0
  

Fix information

• Fixed component name

  IMS HP FP UTILI

• Fixed component ID

  5655K9400

Applicable component levels

• R320 PSY UK59993

     UP10/08/27 P F008