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2823760 - HANA Timer Fallback on VMware based servers

Symptom

  • In HANA traces you see the messages: 
    Fallback to system call for HR timer
  • Detailed information shows similar information: 
    HOST,PORT,SOURCE_HOST,SOURCE_PORT,TYPE,ID,INFOTEXT,CREATE_TIME,UPDATE_TIME,HANDLE_TIME,STATE,ACKNOWLEDGED,FAILED_HANDLES
    "host1",31901,"host1",31901,"TimerFallback",2,"Could not calculate current time on NUMA node 0.","<date>",?,?,"INFO","FALSE",0
    "host1",31901,"host1",31901,"TimerFallback",3,"Could not calculate current time on NUMA node 5.","<date>",?,?,"INFO","FALSE",0
  • System is already configured as per the requirements of note 2753418
  • The server is on VMware and vMotion was performed recently


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Environment

HANA DB

VMware virtualization

Product

SAP HANA, platform edition 2.0

Keywords

VMware, HANA, vMotion, Timer Fallback, TSC, RDTSC , KBA , BC-OP-LNX-ESX , Linux on VmWare ESX , HAN-DB , SAP HANA Database , Problem

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