2655254 - KUDDB2 messages in db2diag.log

• System Hangs suddenly.
• EWA report shows 'High Average Read/Write time'
  
  Db2diag.log shows below message
  ======================
  

  2018-05-10********************* LEVEL: Warning
  PID : ***** TID : ************** PROC : kuddb2
  INSTANCE: db2<sid> NODE : 000
  HOSTNAME: **********
  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
  0x0000000000000000
  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 : Pointer to address that will be set by new allocation, PD_TYPE_PTR_TO_ADDRESS_OUT, 8 bytes
  0x00002aaab7b30f48
  DATA #8 : File name, PD_TYPE_OSS_MEM_FILE_NAME, 9 bytes
  sqlmapi.C
  DATA #9 : Line of code, PD_TYPE_OSS_MEM_LINE_NUM, 8 bytes
  2920
  DATA #10: 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] 0x00002AAAB04F9D8C sqlogmblkEx + 0x192C
  [1] 0x00002AAAB0DB954B /db2/db2<sid>/sqllib/lib/libdb2.so + 0x102754B
  [2] 0x00002AAAB0DB9092 db2GetSnapshotSize + 0x952
  [3] 0x00000000004744D6 _ZN17CandleDb2SnapShot19GetDatabaseSnapshotEPiiS0_iiPPci + 0x3B2
  [4] 0x000000000057C9AF _ZN21kud00_kudtblspc_agent10TakeSampleEv + 0x57D
  [5] 0x00002AAAAB9707D8 _ZN5ctira19DriveDataCollectionEv + 0x2E2
  [6] 0x00002AAAAB97B7B0 _ZN12TableManager23checkForExpiredRequestsEl + 0x35E
  [7] 0x00002AAAAB97BC74 _ZN12TableManager7timeoutEP15CTRA_Timerspec_ + 0x2E
  [8] 0x00002AAAAB92EEC3 _ZN15CTRA_timer_base20TimerCallbackHandlerEv + 0x259
  [9] 0x00002AAAAB92DA37 /opt/IBM/ITM/tmaitm6/lx8266/lib/libkra.so + 0x1E1A37
  [10] 0x00002AAAAB930045 /opt/IBM/ITM/tmaitm6/lx8266/lib/libkra.so + 0x1E4045
  [11] 0x00002AAAAAEED806 /lib64/libpthread.so.0 + 0x7806
  [12] 0x00002AAAAD66974D clone + 0x6D

• Db2 product installed along with IBM Tivoli Monitoring for Databases 
• Db2 LUW 9.1 and above
• SAP SCM 7.0 / 740
• SAP EHP1 FOR SAP NETWEAVER 7.3

Memory, IBM Tivoli Monitoring (ITM), Tivoli Manager, Citra_hostname , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem