3.6. Configuring CPU and memory limits for cluster logging components

Procedure

1. Edit the ClusterLogging custom resource (CR) in the openshift-logging project:

   $ oc edit ClusterLogging instance -n openshift-logging

   apiVersion: "logging.openshift.io/v1"
   kind: "ClusterLogging"
   metadata:
     name: "instance"
   
   ....
   
   spec:
     managementState: "Managed"
     logStore:
       type: "elasticsearch"
       elasticsearch:
         nodeCount: 2
         resources: 1
           limits:
             memory: 2Gi
           requests:
             cpu: 200m
             memory: 2Gi
         storage:
           storageClassName: "gp2"
           size: "200G"
         redundancyPolicy: "SingleRedundancy"
     visualization:
       type: "kibana"
       kibana:
         resources: 2
           limits:
             memory: 1Gi
           requests:
             cpu: 500m
             memory: 1Gi
         proxy:
           resources: 3
             limits:
               memory: 100Mi
             requests:
               cpu: 100m
               memory: 100Mi
         replicas: 2
     curation:
       type: "curator"
       curator:
         resources: 4
           limits:
             memory: 200Mi
           requests:
             cpu: 200m
             memory: 200Mi
         schedule: "*/10 * * * *"
     collection:
       logs:
         type: "fluentd"
         fluentd:
           resources: 5
             limits:
               memory: 736Mi
             requests:
               cpu: 200m
               memory: 736Mi

   1

   Specify the CPU and memory limits and requests for the log store as needed. For Elasticsearch, you must adjust both the request value and the limit value.

   2 3

   Specify the CPU and memory limits and requests for the log visualizer as needed.

   4

   Specify the CPU and memory limits and requests for the log curator as needed.

   5

   Specify the CPU and memory limits and requests for the log collector as needed.