Troubleshooting
Problem
When kernel parameter setting for vm.swappiness is 0, the swappiness value may affect OOM killer behaviour on certain RHEL versions.
Symptom
Occasionally, you may find Db2 database server process (db2sysc) is killed by the Linux OOM killer.
For example, the following message can be found in OS log /var/log/messages:
Dec 1 01:00:00 host1 kernel: Out of memory: Kill process 12345 (db2sysc) score 157 or sacrifice child
Document Location
Worldwide
[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"ARM Category":[{"code":"a8m500000008PmEAAU","label":"Operating System or Hardware-\u003EMemory Management"}],"ARM Case Number":"TS004635283","Platform":[{"code":"PF016","label":"Linux"}],"Version":"All Version(s)"}]
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Document Information
Modified date:
01 May 2025
UID
ibm16390946