chore(postgresql-cluster): use shared memory

Author: EamonZhang

addons/postgresql-cluster/15/chart/postgresql-cluster/templates/statefulset.yaml

@@ -109,6 +109,8 @@ spec:
           # readOnly: true
         - mountPath: "/opt/drycc/postgresql/backup/"
           name: backup-config
+        - name: dshm
+          mountPath: /dev/shm
           # readOnly: true
         resources:
 {{ toYaml .Values.resources | indent 10 }}
@@ -196,7 +198,7 @@ spec:
           mountPath: "{{ .Values.persistentVolume.mountPath }}" 
         - mountPath: "/opt/drycc/postgresql/backup/"
           name: backup-config
-      
+
      {{- with .Values.nodeSelector }} 
       nodeSelector:
 {{ toYaml . | indent 8 }}
@@ -229,6 +231,15 @@ spec:
       - name: storage-volume
         emptyDir: {}
       {{- end }}
+      {{- if .Values.shmVolume.enabled }}
+      - name: dshm
+        emptyDir:
+          medium: Memory
+          {{- if .Values.shmVolume.sizeLimit }}
+          sizeLimit: {{ .Values.shmVolume.sizeLimit }}
+          {{- end }}
+      {{- end }}
+
   {{- if .Values.persistentVolumeClaimRetentionPolicy.enabled }}
   persistentVolumeClaimRetentionPolicy:
     whenDeleted: {{ .Values.persistentVolumeClaimRetentionPolicy.whenDeleted }}

addons/postgresql-cluster/15/chart/postgresql-cluster/values.yaml

@@ -316,6 +316,17 @@ resources:
     cpu: 100m
     memory: 512Mi
 
+shmVolume:
+  ## @param shmVolume.enabled Enable emptyDir volume for /dev/shm for PostgreSQL pod(s)
+  ##
+  enabled: true
+  ## @param shmVolume.sizeLimit Set this to enable a size limit on the shm tmpfs
+  ## Note: the size of the tmpfs counts against container's memory limit
+  ## e.g:
+  ## sizeLimit: 1Gi
+  ##
+  sizeLimit: "1Gi"
+
 # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
 nodeSelector: {}
 

addons/postgresql-cluster/15/plans/standard-16c64g400/values.yaml

@@ -73,3 +73,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 400Gi
+
+shmVolume:
+  sizeLimit: "32Gi"

addons/postgresql-cluster/15/plans/standard-1c2g10/values.yaml

@@ -74,3 +74,5 @@ persistentVolume:
   enabled: true
   size: 10Gi
 
+shmVolume:
+  sizeLimit: "1Gi"

addons/postgresql-cluster/15/plans/standard-2c4g20/values.yaml

@@ -75,3 +75,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 20Gi
+
+shmVolume:
+  sizeLimit: "2Gi"

addons/postgresql-cluster/15/plans/standard-2c8g50/values.yaml

@@ -74,3 +74,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 50Gi
+
+shmVolume:
+  sizeLimit: "4Gi"

addons/postgresql-cluster/15/plans/standard-32c128g800/values.yaml

@@ -73,3 +73,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 800Gi
+
+shmVolume:
+  sizeLimit: "64Gi"

addons/postgresql-cluster/15/plans/standard-32c64g4000/values.yaml

@@ -73,3 +73,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 4Ti
+
+shmVolume:
+  sizeLimit: "32Gi"

addons/postgresql-cluster/15/plans/standard-4c16g100/values.yaml

@@ -74,3 +74,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 100Gi
+
+shmVolume:
+  sizeLimit: "8Gi"

addons/postgresql-cluster/15/plans/standard-8c32g200/values.yaml

@@ -73,3 +73,6 @@ resources:
 persistentVolume:
   enabled: true
   size: 200Gi
+
+shmVolume:
+  sizeLimit: "16Gi"