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IC76661: Out of memory in FCMCTL heap experienced after many node failure s caused by a memory leak.

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You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • On DPF systems there is a possible memory leak when many node
    failures occur causing out of memory in FCMCTL heap.  This will
    cause the instance to crash with the following db2diag.log
    messages.
    
    2011-04-24-14.44.24.590954-240 I2554913355E457     LEVEL: Severe
    PID     : 18387                TID  : 47650825038144PROC :
    db2sysc 5
    INSTANCE: db2inst1            NODE : 005
    EDUID   : 67                   EDUNAME: db2fcms 5
    FUNCTION: DB2 UDB, oper system services, sqloReadDb2nodes,
    probe:30
    MESSAGE : ZRC=0x8B0F0049=-1961951159=SQLO_NOMEM_FCM_CTL_HEAP
              "No memory available in 'FCMCTL Heap'"
              DIA8300C A memory heap error has occurred.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * DPF environment with multiple logical nodes.                 *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * On MLN systems there is a possible memory leak when many     *
    * node                                                         *
    * failures occur causing out of memory in FCMCTL heap.  This   *
    * will                                                         *
    * cause the instance to crash with the following db2diag.log   *
    *                                                              *
    * messages.                                                    *
    *                                                              *
    * 2011-04-24-14.44.24.590954-240 I2554913355E457    LEVEL:     *
    * Severe                                                       *
    * PID    : 18387                TID  : 47650825038144PROC :    *
    *                                                              *
    * db2sysc 5                                                    *
    *                                                              *
    * INSTANCE: nyqxt260            NODE : 005                     *
    *                                                              *
    * EDUID  : 67                  EDUNAME: db2fcms 5              *
    * FUNCTION: DB2 UDB, oper system services, sqloReadDb2nodes,   *
    *                                                              *
    * probe:30                                                     *
    *                                                              *
    * MESSAGE : ZRC=0x8B0F0049=-1961951159=SQLO_NOMEM_FCM_CTL_HEAP *
    *                                                              *
    *           "No memory available in 'FCMCTL Heap'"             *
    *                                                              *
    *           DIA8300C A memory heap error has occurred.         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to v97 fixpack 5.                                    *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IC76661

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-05-26

  • Closed date

    2011-12-23

  • Last modified date

    2011-12-23

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

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

Fix information

Applicable component levels

  • R970 PSN

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC76661

Modified date: 23 December 2011