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
Read more...
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
About this page
This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.