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2915232 - HANA timer fallback alert on AWS due to incorrect configuration

Symptom

  • You receive Alert 7 "Timer Fallback" on your SAP HANA system - HANA timer uses fallback to system timer;
  • Your SAP HANA system is running on AWS;
  • The following entry is observed in the service trace:
    e Basis            Timer.cpp(00899) : Usage of system timer is forced because the clocksource file '/sys/devices/system/clocksource/clocksource0/current_clocksource' has no 'tsc' clocksource. The file contents: xen


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Environment

SAP HANA, platform edition 2.0;

Product

SAP HANA, platform edition 2.0

Keywords

xen, tsc, timer fallback, timerfallback, fall back, performance, wait, clocksource, aws, amazon , KBA , HAN-DB-MON , SAP HANA Monitoring , BC-OP-LNX-AWS , Amazon Web Services , Problem

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