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3661963 - DB6: db2diag.log flooded with invalid message queue handle errors

Symptom

  • The db2diag log file increases rapidly.

    It is flooded with huge amount of following messages found:

    2025-09-18-09.18.18.539518+120 E255526110E656 LEVEL: Error (OS)
    PID : 10268 TID : 140149887862016 PROC : db2
    INSTANCE: db2abc NODE : 000
    HOSTNAME: abc123
    FUNCTION: DB2 UDB, oper system services, sqlowqueInternal, probe:40
    MESSAGE : ZRC=0x870F003E=-2029060034=SQLO_QUE_BAD_HANDLE "Bad Queue Handle"

    2025-09-18-09.18.18.541180+120 I255526767E397 LEVEL: Error
    PID : 10268 TID : 140149887862016 PROC : db2
    INSTANCE: db2abc NODE : 000
    HOSTNAME: abc123
    FUNCTION: DB2 UDB, command line process, clp_send_bpreq, probe:6
    MESSAGE : Error returned from SQLOWQUE


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Environment

  • SAP on IBM Db2 for Linux, Unix and Windows
  • Db2 11.5 with version lower than M9 FP0 SAP 

Product

SAP ERP 6.0 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5

Keywords

db2diag log, rapid growth, invalid message queue handle, Error returned from SQLOWQUE, Bad Queue Handle, clp_send_bpreq , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem

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