SAP Knowledge Base Article - Preview

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

Read more...

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

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.