IBM Support

IT22815: CRASH MAY OCCUR DURING CDE JOIN WHEN PROCESSING A LARGE AMOUNT OF DATA

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APAR status

  • Closed as program error.

Error description

  • Crash may occur during CDE Join when processing a large amount
    of data.
    Crash stack will show similar to the following:
    <StackTrace>
    __intel_avx_rep_memset + 0x01b1
    _ZNK7ibm_cde5query10ColumnDesc10extractColILb0ELb1EEEvPvPKlRmRj
    + 0x0063
    _ZN7ibm_cde5query16ExtractEvaluatorILb1EE7processINS_5types7Inte
    gerIaLb0EEENS4_12VarLenStringELb0ELb1EEEvv + 0x0570
    _ZN7ibm_cde5query16ExtractEvaluatorILb1EE26processInputsSynchron
    ouslyEv + 0x02b4
    _ZN7ibm_cde5query9Evaluator8evaluateEbbRNS1_21EvaluatorRestartSt
    ateEPNS0_19OptPredicateTrackerE + 0x03a9
    _ZN7ibm_cde5query17EvaluationRoutine8evaluateEjP15sql_static_dat
    a + 0x030c
    _ZN7ibm_cde5query9Scheduler13evaluateChainEPNS0_17EvaluationRout
    ineERm + 0x0284
    _ZN7ibm_cde5query9Scheduler15runWorkerThreadEPvPi + 0x0363
    ...
    
    
    Cleaned up stack shows as:
    <StackTrace>
    memset + 0x01b1
    ibm_cde::query::ColumnDesc::extractCol<false, true>(void*, long
    const*, unsigned long&, unsigned int&) const + 0x0063
    ibm_cde::query::ExtractEvaluator<true>::process<ibm_cde::types::
    Integer<signed char, false>, ibm_cde::types::VarLenString,false,
    true>() + 0x0570
    ibm_cde::query::ExtractEvaluator<true>::processInputsSynchronous
    ly() + 0x02b4
    ibm_cde::query::Evaluator::evaluate(bool, bool,
    ibm_cde::query::Evaluator::EvaluatorRestartState&,
    ibm_cde::query::OptPredicateTracker*) + 0x03a9
    ibm_cde::query::EvaluationRoutine::evaluate(unsigned
    int,sql_static_data*) + 0x030c
    ibm_cde::query::Scheduler::evaluateChain(ibm_cde::query::Evaluat
    ionRoutine*, unsigned long&) + 0x0284
    ibm_cde::query::Scheduler::runWorkerThread(void*, int*) + 0x0363
    ...
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Db2 Column Organized Users                               *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 LUW 10.5 Fix Pack 10 or later.                *
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 LUW 10.5 Fix Pack 10.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT22815

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    A50

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-10-18

  • Closed date

    2018-07-12

  • Last modified date

    2018-07-12

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

    IT22780

  • 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

[{"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":"10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
12 July 2018