feat: increase default shared buffers

charts/postgres-cluster/README.md

@@ -24,7 +24,7 @@ Cloudnative-pg Cluster
 | backup.method | string | `"objectStore"` | Method to create backups, options currently are only objectStore |
 | backup.objectStore | string | `nil` | Options for object store backups |
 | backup.scheduledBackups | list | `[]` | List of scheduled backups |
-| cluster | object | `{"additionalLabels":{},"affinity":{"enablePodAntiAffinity":true,"topologyKey":"kubernetes.io/hostname"},"annotations":{},"certificates":{},"enablePDB":true,"enableSuperuserAccess":false,"image":{"repository":"ghcr.io/cloudnative-pg/postgresql","tag":"18.3-standard-trixie"},"imagePullPolicy":"IfNotPresent","imagePullSecrets":[],"initdb":{"database":"app","owner":"app"},"instances":3,"logLevel":"info","monitoring":{"customQueries":[],"customQueriesSecret":[],"disableDefaultQueries":false,"enabled":true,"podMonitor":{"enabled":true,"metricRelabelings":[],"relabelings":[]},"prometheusRule":{"enabled":true,"excludeRules":["CNPGClusterLastFailedArchiveTimeWarning"]}},"postgresGID":-1,"postgresUID":-1,"postgresql":{"ldap":{},"parameters":{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"128MB"},"pg_hba":[],"pg_ident":[],"shared_preload_libraries":[],"synchronous":{}},"primaryUpdateMethod":"switchover","primaryUpdateStrategy":"unsupervised","priorityClassName":"","resources":{"limits":{"hugepages-2Mi":"256Mi"},"requests":{"cpu":"20m","memory":"80Mi"}},"roles":[],"serviceAccountTemplate":{},"services":{},"storage":{"size":"10Gi","storageClass":"local-path"},"superuserSecret":"","walStorage":{"enabled":true,"size":"2Gi","storageClass":"local-path"}}` | Cluster settings |
+| cluster | object | `{"additionalLabels":{},"affinity":{"enablePodAntiAffinity":true,"topologyKey":"kubernetes.io/hostname"},"annotations":{},"certificates":{},"enablePDB":true,"enableSuperuserAccess":false,"image":{"repository":"ghcr.io/cloudnative-pg/postgresql","tag":"18.3-standard-trixie"},"imagePullPolicy":"IfNotPresent","imagePullSecrets":[],"initdb":{"database":"app","owner":"app"},"instances":3,"logLevel":"info","monitoring":{"customQueries":[],"customQueriesSecret":[],"disableDefaultQueries":false,"enabled":true,"podMonitor":{"enabled":true,"metricRelabelings":[],"relabelings":[]},"prometheusRule":{"enabled":true,"excludeRules":["CNPGClusterLastFailedArchiveTimeWarning"]}},"postgresGID":-1,"postgresUID":-1,"postgresql":{"ldap":{},"parameters":{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"512MB"},"pg_hba":[],"pg_ident":[],"shared_preload_libraries":[],"synchronous":{}},"primaryUpdateMethod":"switchover","primaryUpdateStrategy":"unsupervised","priorityClassName":"","resources":{"limits":{"hugepages-2Mi":"256Mi"},"requests":{"cpu":"20m","memory":"80Mi"}},"roles":[],"serviceAccountTemplate":{},"services":{},"storage":{"size":"10Gi","storageClass":"local-path"},"superuserSecret":"","walStorage":{"enabled":true,"size":"2Gi","storageClass":"local-path"}}` | Cluster settings |
 | cluster.affinity | object | `{"enablePodAntiAffinity":true,"topologyKey":"kubernetes.io/hostname"}` | Affinity/Anti-affinity rules for Pods. See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-AffinityConfiguration |
 | cluster.certificates | object | `{}` | The configuration for the CA and related certificates. See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-CertificatesConfiguration |
 | cluster.enablePDB | bool | `true` | Allow to disable PDB, mainly useful for upgrade of single-instance clusters or development purposes See: https://cloudnative-pg.io/documentation/current/kubernetes_upgrade/#pod-disruption-budgets |
@@ -46,9 +46,9 @@ Cloudnative-pg Cluster
 | cluster.monitoring.prometheusRule.enabled | bool | `true` | Whether to enable the PrometheusRule automated alerts |
 | cluster.monitoring.prometheusRule.excludeRules | list | `["CNPGClusterLastFailedArchiveTimeWarning"]` | Exclude specified rules |
 | cluster.postgresUID | int | `-1` | The UID and GID of the postgres user inside the image, defaults to 26 |
-| cluster.postgresql | object | `{"ldap":{},"parameters":{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"128MB"},"pg_hba":[],"pg_ident":[],"shared_preload_libraries":[],"synchronous":{}}` | Parameters to be set for the database itself See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-PostgresConfiguration |
+| cluster.postgresql | object | `{"ldap":{},"parameters":{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"512MB"},"pg_hba":[],"pg_ident":[],"shared_preload_libraries":[],"synchronous":{}}` | Parameters to be set for the database itself See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-PostgresConfiguration |
 | cluster.postgresql.ldap | object | `{}` | PostgreSQL LDAP configuration (see https://cloudnative-pg.io/documentation/current/postgresql_conf/#ldap-configuration) |
-| cluster.postgresql.parameters | object | `{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"128MB"}` | PostgreSQL configuration options (postgresql.conf) |
+| cluster.postgresql.parameters | object | `{"hot_standby_feedback":"on","max_slot_wal_keep_size":"2000MB","shared_buffers":"512MB"}` | PostgreSQL configuration options (postgresql.conf) |
 | cluster.postgresql.pg_hba | list | `[]` | PostgreSQL Host Based Authentication rules (lines to be appended to the pg_hba.conf file) |
 | cluster.postgresql.pg_ident | list | `[]` | PostgreSQL User Name Maps rules (lines to be appended to the pg_ident.conf file) |
 | cluster.postgresql.shared_preload_libraries | list | `[]` | Lists of shared preload libraries to add to the default ones |