IT21509: HASH FUNCTION FOR EMPTY BLOB RETURNS SQL0083C ERROR

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 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 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• Calling HASH function on an empty blob returns SQL0083C error:
  $ db2 "values hash( blob(''), 2 )"
  SQL0083C  A memory allocation error has occurred.
  
  The following is logged in db2diag.log:
  2017-07-17-21.05.23.674784-240 I1553866A2599        LEVEL:
  Warning
  PID     : 36634966             TID : 2332           PROC :
  db2sysc
  INSTANCE: DB2INST1    NODE : 000           DB   : MYDB1
  APPHDL  : 0-28                 APPID: *X.X.X.X.0000
  AUTHID  : DB2INST1        HOSTNAME: MYHOST1
  EDUID   : 2332                 EDUNAME: db2agent (MYDB1)
  FUNCTION: DB2 UDB, SQO Memory Management, sqlogmblkEx,
  probe:1000
  MESSAGE : ZRC=0x820F0004=-2112946172=SQLO_MEM_SIZE "Mem Mgt
  invalid size"
            DIA8563C An invalid memory size was requested.
  DATA #1 : String, 43 bytes
  Memory management block allocation failure.
  DATA #2 : Codepath, 8 bytes
  2
  DATA #3 : Memory pool handle pointer,
  PD_TYPE_MEM_POOL_HANDLE_PTR, 8 bytes
  0x0a00020000003398
  DATA #4 : Requested size, PD_TYPE_MEM_REQUESTED_SIZE, 8 bytes
  0
  DATA #5 : Adjusted block size, PD_TYPE_MEM_ADJUSTED_SIZE, 8
  bytes
  0
  DATA #6 : Options for requested block, PD_TYPE_GET_MEM_OPTIONS,
  4 bytes
  0x00000000
  DATA #7 : File name, PD_TYPE_OSS_MEM_FILE_NAME, 17 bytes
  sqlri_hash_sclr.C
  DATA #8 : Line of code, PD_TYPE_OSS_MEM_LINE_NUM, 8 bytes
  652
  DATA #9 : Resource binding pointer,
  PD_TYPE_RESOURCE_BINDING_PTR, 8 bytes
  0x0000000000000000
  CALLSTCK: (Static functions may not be resolved correctly, as
  they are resolved to the nearest symbol)
    [0] 0x090000008D988C9C sqloGetMemoryBlockExtended + 0x41C
    [1] 0x0900000093FC1250 sqlriHashLong__FP8sqlrr_cb + 0x350
    [2] 0x09000000905C53B8 sqlriComputeOnce__FP8sqlrr_cb + 0xB8
    [3] 0x090000008F878878
  sqlriSectInvoke__FP8sqlrr_cbP12sqlri_opparm + 0x5F8
    [4] 0x090000008F32D628
  sqlrr_process_fetch_request__FP14db2UCinterface + 0xD08
    [5] 0x090000008F3309A8
  sqlrr_open__FP14db2UCinterfaceP15db2UCCursorInfo + 0x10C8
    [6] 0x0900000094721140
  sqljs_ddm_opnqry__FP14db2UCinterfaceP13sqljDDMObject + 0x4C0
    [7] 0x09000000946BFB78
  sqljsParseRdbAccessed__FP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UC
  interface + 0x298
    [8] 0x09000000946C2BD0
  sqljsParse__FP13sqljsDrdaAsCbP14db2UCinterfaceP8sqeAgentb +
  0x2250
    [9] 0x090000009468F04C
  IPRA.$sqljsSqlam__FP14db2UCinterfaceP8sqeAgentb + 0xEAC
    [10] 0x0900000094697B14
  sqljsDriveRequests__FP8sqeAgentP14db2UCconHandle + 0xB4
    [11] 0x090000009468D0F0
  IPRA.$sqljsDrdaAsInnerDriver__FP18SQLCC_INITSTRUCT_Tb + 0x13F0
    [12] 0x090000009468A534
  sqljsDrdaAsDriver__FP18SQLCC_INITSTRUCT_T + 0x334
    [13] 0x090000008DA95CA0 RunEDU__8sqeAgentFv + 0xB60
    [14] 0x090000008DA787A0 EDUDriver__9sqzEDUObjFv + 0x2E0
    [15] 0x090000008D968714 sqloEDUEntry + 0x374
    [16] 0x0900000000573FE8 _pthread_body + 0xE8
    [17] 0xFFFFFFFFFFFFFFFC ?unknown + 0xFFFFFFFF
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * ALL                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 11.1 Mod 3 Fix Pack 3 or higher               *
  ****************************************************************
  

Problem conclusion

• First fixed in Db2 11.1 Mod 3 Fix Pack 3
  

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:

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RB10 PSN

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