IT17287: A LOCKING EVENT MONITOR CAN INCORRECTLY CAPTURE STATIC STMT TEXTAND REPORT INCORRECT NUMBER OF INPUT VARIABLES

DB2 Version 11.1 Mod 2 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 9 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod4 Fix Pack4 iFix001 for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 10 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 4 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 11 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• When a LOCKING event monitor captures events that involve STATIC
  sql, the stmt_text may not be properly captured.
  Furthermore, when that statement includes parameter markers the
  event monitor output can show a mismatching number of parameter
  markers to the stmt text.
  
  For example here is an output snippet from the output of the
  db2evmonfmt tool illustrating the problem:
  
  ...
  Stmt text          : declare TESTCURSOR cursor for select
  t1.COL1, t1.COL2, t1.COL3, t1.TS from MYTAB t1 where COL2 =
  :H00058 and COL3 = :H00059 order by t1.COL1 ASC
  Input variable 1
  Type              : INTEGER
  Data              : 3
  Reopt             : no
  Null              : no
  Input variable 2
  Type              : VARCHAR
  Data              : 2015-12-11
  Reopt             : no
  Null              : no
  Input variable 3
  Type              : INTEGER
  Data              : 7
  Reopt             : no
  Null              : no
  Input variable 4
  Type              : INTEGER
  Data              : 4
  Reopt             : no
  Null              : no
  ...
  
  In the snippet above we see that statement has 2 input
  variables, while later on we list 4.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * ALL                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 10.5 Fix Pack 9 or higher                     *
  ****************************************************************
  

Problem conclusion

• First fixed in Db2 10.5 Fix Pack 9
  

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:

  IT22606

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RA50 PSN

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