IBM Support

IC74050: JCC DRIVER MEMORY LEAK ON GETNULLCONNECTION FUNCTION.

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APAR status

  • Closed as program error.

Error description

  • JCC driver memory leak on getNullConnection function. Java
    routine (db2fmp) which returns resultset may be terminated with
    either Java OOM error or out of native heap (ENOMEN) error.
    
    
    2011-01-18-18.17.00.262695-300 E3876208A1273      LEVEL: Error
    (OS)
    PID     : xxxx         TID  : xxxx        PROC : db2fmp (Java) 0
    
    INSTANCE: xxxx         NODE : 000
    EDUID   : 7197                 EDUNAME: db2fmp (Java) 0
    FUNCTION: DB2 UDB, SQO Memory Management,
    sqloLogMemoryCondition, probe:
    100
    CALLED  : OS, -, malloc
    OSERR   : ENOMEM (12) "There is not enough memory available
    now."
    MESSAGE : Private memory and/or virtual address space exhausted,
    or
    data ulimit
              exceeded
    DATA #1 : Soft data resource limit, PD_TYPE_RLIM_DATA_CUR, 8
    bytes
    251657728
    DATA #2 : Requested size, PD_TYPE_MEM_REQUESTED_SIZE, 8 bytes
    266240
    DATA #3 : Current set size, PD_TYPE_SET_SIZE, 8 bytes
    166395904
    CALLSTCK:
      [0] 0x0900000008A9CCAC pdLogSysRC + 0x7C
      [1] 0x090000000846FDDC sqloLogMemoryCondition + 0x274
      [2] 0x090000000846FAB0 sqloLogMemoryCondition@glue314 + 0x78
      [3] 0x09000000087602FC sqlogmblkEx + 0xBC
      [4] 0x090000000760AAEC
    getNullConnection__FPiPcPUcN43N32PUlT2PUiPlT14_ + 0x6C
      [5] 0x090000000760A598
    Java_com_ibm_db2_jcc_uw_UWConnection_SPConnect
    + 0x118
    ...
    

Local fix

  • N/A
    

Problem summary

  • First fixed in JDBC driver included in DB2 9.5 Fix Pack 8 (JCC
    driver version 3.62.57)
    

Problem conclusion

  • Upgrade to JDBC driver included in DB2 9.5 Fix Pack 8 (JCC
    driver version 3.62.57) or higher
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC74050

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2011-01-25

  • Closed date

    2017-05-25

  • Last modified date

    2017-05-25

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

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

    IC74054

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R950 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
25 May 2017