[MUSIC][CASSANDRA] Use Startup probes
Instead of long initial delay on readiness and liveness probes, use
startup probes and be more aggressive on readiness and liveness.
Also, decrease number of replicas from 3 to 1
Issue-ID: OOM-2742
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: Ideb0ede251332e182b975ff18ca5a75bcbff2351
diff --git a/kubernetes/common/music/components/music-cassandra/templates/job.yaml b/kubernetes/common/music/components/music-cassandra/templates/job.yaml
index 3cf1ae3..d3c89d4 100644
--- a/kubernetes/common/music/components/music-cassandra/templates/job.yaml
+++ b/kubernetes/common/music/components/music-cassandra/templates/job.yaml
@@ -39,8 +39,6 @@
command:
- /app/ready.py
args:
- - --timeout
- - "{{ .Values.readinessTimeout }}"
- --container-name
- music-cassandra
env:
@@ -87,4 +85,3 @@
restartPolicy: Never
imagePullSecrets:
- name: "{{ include "common.namespace" . }}-docker-registry-key"
-
diff --git a/kubernetes/common/music/components/music-cassandra/templates/statefulset.yaml b/kubernetes/common/music/components/music-cassandra/templates/statefulset.yaml
index 2a1fb4f..1aabfb6 100644
--- a/kubernetes/common/music/components/music-cassandra/templates/statefulset.yaml
+++ b/kubernetes/common/music/components/music-cassandra/templates/statefulset.yaml
@@ -73,6 +73,17 @@
timeoutSeconds: {{ .Values.readiness.timeoutSeconds }}
successThreshold: {{ .Values.readiness.successThreshold }}
failureThreshold: {{ .Values.readiness.failureThreshold }}
+ startupProbe:
+ exec:
+ command:
+ - /bin/bash
+ - -c
+ - nodetool status | grep $POD_IP | awk '$1!="UN" { exit 1; }'
+ initialDelaySeconds: {{ .Values.startup.initialDelaySeconds }}
+ periodSeconds: {{ .Values.startup.periodSeconds }}
+ timeoutSeconds: {{ .Values.startup.timeoutSeconds }}
+ successThreshold: {{ .Values.startup.successThreshold }}
+ failureThreshold: {{ .Values.startup.failureThreshold }}
lifecycle:
preStop:
exec:
diff --git a/kubernetes/common/music/components/music-cassandra/values.yaml b/kubernetes/common/music/components/music-cassandra/values.yaml
index 8530172..92ed723 100644
--- a/kubernetes/common/music/components/music-cassandra/values.yaml
+++ b/kubernetes/common/music/components/music-cassandra/values.yaml
@@ -18,7 +18,7 @@
nodePortPrefix: 302
persistence: {}
-replicaCount: 3
+replicaCount: 1
# Cassandra Image - This image is modified from the original on
# Docker Hub where the Security has been turned on.
@@ -72,8 +72,8 @@
# probe configuration parameters
liveness:
- initialDelaySeconds: 120
- periodSeconds: 20
+ initialDelaySeconds: 1
+ periodSeconds: 10
timeoutSeconds: 10
successThreshold: 1
failureThreshold: 3
@@ -81,15 +81,20 @@
# in debugger so K8s doesn't restart unresponsive container
enabled: true
-readinessTimeout: 240
-
readiness:
- initialDelaySeconds: 10
- periodSeconds: 20
+ initialDelaySeconds: 1
+ periodSeconds: 10
timeoutSeconds: 10
successThreshold: 1
failureThreshold: 3
+startup:
+ initialDelaySeconds: 10
+ periodSeconds: 10
+ timeoutSeconds: 10
+ successThreshold: 1
+ failureThreshold: 90
+
podManagementPolicy: OrderedReady
updateStrategy:
type: OnDelete