Symptom
On Linux the vm.swappiness kernel parameter can be used to control the tendency of the OS to swap out memory instead of freeing it up, in case of memory demand.
In some situations vm.swappiness was set to 0, to control swapping activity on the server.
Possible side effects of the setting:
- high CPU usage
- high paging activity
- system crash
- out-of-memory crash (with signal 9) on SAP processes
Read more...
Environment
- SAP Netweaver (any version)
- SAP S/4HANA (any version)
- Linux (any distribution and version)
Product
SAP NetWeaver all versions ; SAP S/4HANA all versions
Keywords
linux, oom, cpu, paging, swapping, swappiness, vm.swappiness, swap , KBA , BC-OP-LNX , Linux , 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.