From 578ac5b348fa3e9c7d0d05e3a0f579839ecd79dd Mon Sep 17 00:00:00 2001 From: Peter Portante Date: Fri, 13 Oct 2017 11:04:49 -0400 Subject: Use "requests" for CPU resources instead of limits We now use a CPU request to ensure logging infrastructure pods are not capped by default for CPU usage. It is still important to ensure we have a minimum amount of CPU. We keep the use of the variables *_cpu_limit so that the existing behavior is maintained. Note that we don't want to cap an infra pod's CPU usage by default, since we want to be able to use the necessary resources to complete it's tasks. Bug 1501960 (https://bugzilla.redhat.com/show_bug.cgi?id=1501960) --- roles/openshift_logging_elasticsearch/defaults/main.yml | 5 +++-- roles/openshift_logging_elasticsearch/tasks/main.yaml | 3 ++- roles/openshift_logging_elasticsearch/templates/es.j2 | 7 ++++--- 3 files changed, 9 insertions(+), 6 deletions(-) (limited to 'roles/openshift_logging_elasticsearch') diff --git a/roles/openshift_logging_elasticsearch/defaults/main.yml b/roles/openshift_logging_elasticsearch/defaults/main.yml index fc48b7f71..9fc6fd1d8 100644 --- a/roles/openshift_logging_elasticsearch/defaults/main.yml +++ b/roles/openshift_logging_elasticsearch/defaults/main.yml @@ -6,7 +6,8 @@ openshift_logging_elasticsearch_image_pull_secret: "{{ openshift_hosted_logging_ openshift_logging_elasticsearch_namespace: logging openshift_logging_elasticsearch_nodeselector: "{{ openshift_logging_es_nodeselector | default('') }}" -openshift_logging_elasticsearch_cpu_limit: "{{ openshift_logging_es_cpu_limit | default('1000m') }}" +openshift_logging_elasticsearch_cpu_limit: "{{ openshift_logging_es_cpu_limit | default('') }}" +openshift_logging_elasticsearch_cpu_request: "{{ openshift_logging_es_cpu_request | default('1000m') }}" openshift_logging_elasticsearch_memory_limit: "{{ openshift_logging_es_memory_limit | default('1Gi') }}" openshift_logging_elasticsearch_recover_after_time: "{{ openshift_logging_es_recover_after_time | default('5m') }}" @@ -40,7 +41,7 @@ openshift_logging_es_pvc_prefix: "{{ openshift_hosted_logging_elasticsearch_pvc_ # config the es plugin to write kibana index based on the index mode openshift_logging_elasticsearch_kibana_index_mode: 'unique' -openshift_logging_elasticsearch_proxy_cpu_limit: "100m" +openshift_logging_elasticsearch_proxy_cpu_request: "100m" openshift_logging_elasticsearch_proxy_memory_limit: "64Mi" openshift_logging_elasticsearch_prometheus_sa: "system:serviceaccount:{{openshift_prometheus_namespace | default('prometheus')}}:prometheus" diff --git a/roles/openshift_logging_elasticsearch/tasks/main.yaml b/roles/openshift_logging_elasticsearch/tasks/main.yaml index aeff2d198..9868eeb31 100644 --- a/roles/openshift_logging_elasticsearch/tasks/main.yaml +++ b/roles/openshift_logging_elasticsearch/tasks/main.yaml @@ -349,7 +349,8 @@ deploy_name: "{{ es_deploy_name }}" image: "{{ openshift_logging_elasticsearch_image_prefix }}logging-elasticsearch:{{ openshift_logging_elasticsearch_image_version }}" proxy_image: "{{ openshift_logging_elasticsearch_proxy_image_prefix }}oauth-proxy:{{ openshift_logging_elasticsearch_proxy_image_version }}" - es_cpu_limit: "{{ openshift_logging_elasticsearch_cpu_limit }}" + es_cpu_limit: "{{ openshift_logging_elasticsearch_cpu_limit | default('') }}" + es_cpu_request: "{{ openshift_logging_elasticsearch_cpu_request }}" es_memory_limit: "{{ openshift_logging_elasticsearch_memory_limit }}" es_node_selector: "{{ openshift_logging_elasticsearch_nodeselector | default({}) }}" es_storage_groups: "{{ openshift_logging_elasticsearch_storage_group | default([]) }}" diff --git a/roles/openshift_logging_elasticsearch/templates/es.j2 b/roles/openshift_logging_elasticsearch/templates/es.j2 index ce3b2eb83..7966d219e 100644 --- a/roles/openshift_logging_elasticsearch/templates/es.j2 +++ b/roles/openshift_logging_elasticsearch/templates/es.j2 @@ -69,9 +69,9 @@ spec: readOnly: true resources: limits: - cpu: "{{openshift_logging_elasticsearch_proxy_cpu_limit }}" memory: "{{openshift_logging_elasticsearch_proxy_memory_limit }}" requests: + cpu: "{{openshift_logging_elasticsearch_proxy_cpu_request }}" memory: "{{openshift_logging_elasticsearch_proxy_memory_limit }}" - name: "elasticsearch" @@ -79,11 +79,12 @@ spec: imagePullPolicy: Always resources: limits: - memory: "{{es_memory_limit}}" -{% if es_cpu_limit is defined and es_cpu_limit is not none %} +{% if es_cpu_limit is defined and es_cpu_limit is not none and es_cpu_limit != '' %} cpu: "{{es_cpu_limit}}" {% endif %} + memory: "{{es_memory_limit}}" requests: + cpu: "{{es_cpu_request}}" memory: "{{es_memory_limit}}" {% if es_container_security_context %} securityContext: {{ es_container_security_context | to_yaml }} -- cgit v1.2.3