PH34859: DB2 12 FOR Z/OS NEW FUNCTION FOR FTB (FAST TRAVERSE BLOCKS)

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• Db2 12 for z/OS new function for FTB (fast traverse blocks).
  
  Additional keywords : DB2FTB/K
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Db2 V12 for z/OS users with in-memory                    *
  * index optimization function switched on                      *
  * (Index Fast Traverse Block - FTB).                           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * This apar introduces a new                                   *
  * "DISPLAY STATS (INDEXTRAVERSECOUNT)"                         *
  * command, which allows                                        *
  * 1. Display traverse count for specific                       *
  * index.                                                       *
  * 2. Display first N indexes with the                          *
  * highest traverse counts in descending                        *
  * order.                                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  This apar introduces a new "DISPLAY STATS (INDEXTRAVERSECOUNT)"
  command, which allows
  1. Display traverse count for specific index.
  2. Display first N indexes with the highest traverse counts in
  descending order.
  EXAMPLES
  1.
  -DISPLAY STATS(INDEXTRAVERSECOUNT) DBNAME(DB1) SPACENAM(IX1)
   PART(1)
  Output
  DBID PSID DBNAME   IX-SPACE LVL PART TRAV. COUNT
  ---- ---- -------- -------- --- ---- -----------
  0017 0005 DB1      IX1      003 0001 00000000999
  ******* DISPLAY OF STATS ENDED ******************
  2.
  -DISPLAY STATS(ITC) DBNAME(DB1) LIMIT(*)
  3.
  -DIS STATS(ITC) DB(DB1) LIMIT(10)
  Output (traverse counts are in descending order)
  DBID PSID DBNAME   IX-SPACE LVL PART TRAV. COUNT
  ---- ---- -------- -------- --- ---- -----------
  0017 0005 DB1      IX1      003 0001 00000050099
  0017 0005 DB1      IX2      003 0010 00000050001
  0017 0005 DB1      IX2      003 0008 00000030021
  0017 0005 DB1      IX2      003 0016 00000029999
  0017 0005 DB1      IX3      003 0001 00000000999
  0017 0005 DB1      IX1      003 0003 00000000800
  0017 0005 DB1      IX5      003 0001 00000000666
  0017 0005 DB1      IX1      003 0022 00000000100
  0017 0005 DB1      IX7      003 0001 00000000100
  0017 0005 DB1      IX1      003 0002 00000000100
  ******* DISPLAY OF STATS ENDED ******************
  

Problem conclusion

Temporary fix

Comments

• More information can be found in "IBM Knowledge Center"
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI75254

Modules/Macros

• DSNFTDIR DSNXFNLV DSN9SCNA DSNFCDIR DSNKFTOM DSNTDSTE DSNTDSTS
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RC10 PSY UI75254

     UP21/05/14 P F105

Fix is available

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