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authora.sreekumar <ajith.sreekumar@bell.ca>2021-09-10 14:41:30 +0100
committerSylvain Desbureaux <sylvain.desbureaux@orange.com>2021-09-16 11:51:48 +0000
commitcf3133d88263a00e6fef18741575fd2561f70085 (patch)
tree172a3995fa58f3f32a0e2c5563a119423f7a40e4
parentd362d9f64521d4585f779ff450f547da1ac00adb (diff)
[COMMON] Fix db-metrics readiness timeout issue
DB connection from Policy Framework components fail intermittently with Connection refused error. Upon investigation, identified that mariadb-metrics readiness is failing with timeout, and thereby affecting the db connectivity intermittently. So, changing readiness timeout from 1 second to 5 seconds so that there is enough time to get back the /metrics response and readiness can pass. Also making the properties configurable. Similar issue could happen in other components too. Change-Id: I8dfbfeb0fe791c1bce373dd9d7124d26457c4919 Issue-ID: POLICY-3637 Signed-off-by: a.sreekumar <ajith.sreekumar@bell.ca>
-rw-r--r--kubernetes/common/mariadb-galera/templates/statefulset.yaml17
-rw-r--r--kubernetes/common/mariadb-galera/values.yaml20
2 files changed, 31 insertions, 6 deletions
diff --git a/kubernetes/common/mariadb-galera/templates/statefulset.yaml b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
index 9227e182b6..bb3af76115 100644
--- a/kubernetes/common/mariadb-galera/templates/statefulset.yaml
+++ b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
@@ -1,5 +1,6 @@
{{/*
-# Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2018 Amdocs
+# Copyright © 2018,2021 Bell Canada
# Copyright © 2019 Samsung Electronics
# Copyright © 2019-2020 Orange
# Copyright © 2020 Bitnami
@@ -202,14 +203,20 @@ spec:
httpGet:
path: /metrics
port: metrics
- initialDelaySeconds: 30
- timeoutSeconds: 5
+ initialDelaySeconds: {{ .Values.metrics.livenessProbe.initialDelaySeconds }}
+ periodSeconds: {{ .Values.metrics.livenessProbe.periodSeconds }}
+ timeoutSeconds: {{ .Values.metrics.livenessProbe.timeoutSeconds }}
+ successThreshold: {{ .Values.metrics.livenessProbe.successThreshold }}
+ failureThreshold: {{ .Values.metrics.livenessProbe.failureThreshold }}
readinessProbe:
httpGet:
path: /metrics
port: metrics
- initialDelaySeconds: 5
- timeoutSeconds: 1
+ initialDelaySeconds: {{ .Values.metrics.readinessProbe.initialDelaySeconds }}
+ periodSeconds: {{ .Values.metrics.readinessProbe.periodSeconds }}
+ timeoutSeconds: {{ .Values.metrics.readinessProbe.timeoutSeconds }}
+ successThreshold: {{ .Values.metrics.readinessProbe.successThreshold }}
+ failureThreshold: {{ .Values.metrics.readinessProbe.failureThreshold }}
{{ include "common.containerSecurityContext" . | indent 10 | trim }}
resources: {{- toYaml .Values.metrics.resources | nindent 12 }}
{{- end }}
diff --git a/kubernetes/common/mariadb-galera/values.yaml b/kubernetes/common/mariadb-galera/values.yaml
index ed9977acd9..bc9273f41f 100644
--- a/kubernetes/common/mariadb-galera/values.yaml
+++ b/kubernetes/common/mariadb-galera/values.yaml
@@ -1,4 +1,5 @@
-# Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2018 Amdocs
+# Copyright © 2018,2021 Bell Canada
# Copyright © 2019 Samsung Electronics
# Copyright © 2020 Bitnami, Orange
#
@@ -560,6 +561,23 @@ metrics:
requests:
cpu: 0.5
memory: 256Mi
+ ## MariaDB Galera metrics container's liveness and readiness probes
+ ## ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
+ ##
+ livenessProbe:
+ enabled: true
+ initialDelaySeconds: 30
+ periodSeconds: 10
+ timeoutSeconds: 5
+ successThreshold: 1
+ failureThreshold: 3
+ readinessProbe:
+ enabled: true
+ initialDelaySeconds: 5
+ periodSeconds: 10
+ timeoutSeconds: 5
+ successThreshold: 1
+ failureThreshold: 3
## MySQL Prometheus exporter service parameters
##
service: