pgedge

pgEdge 内核模板,提供面向边缘场景的多主分布式 PostgreSQL 能力

pgedge 配置模板使用 pgEdge 数据库内核替代原生 PostgreSQL,提供面向边缘场景的分布式与多主复制能力。

完整教程请参考:pgEdge 内核使用说明


配置概览

  • 配置名称: pgedge
  • 节点数量: 单节点
  • 配置说明:pgEdge(PG17)分布式内核配置模板
  • 适用系统:el8, el9, el10, d12, d13, u22, u24
  • 适用架构:x86_64, aarch64
  • 相关配置:metapgsql

启用方式:

./configure -c pgedge [-i <primary_ip>]

配置内容

源文件地址:pigsty/conf/pgedge.yml

---
#==============================================================#
# File      :   pgedge.yml
# Desc      :   1-node pgEdge (Distributed PG) template
# Ctime     :   2026-02-26
# Mtime     :   2026-02-26
# Docs      :   https://pigsty.io/docs/conf/pgedge
# License   :   Apache-2.0 @ https://pigsty.io/docs/about/license/
# Copyright :   2018-2026  Ruohang Feng / Vonng (rh@vonng.com)
#==============================================================#

# This is the config template for pgEdge Kernel,
# Which is a PostgreSQL 17 compatible fork.
# tutorial: https://pigsty.io/docs/pgsql/kernel/pgedge
#
# Usage:
#   curl https://repo.pigsty.io/get | bash
#   ./configure -c pgedge
#   ./deploy.yml

all:
  children:
    infra: { hosts: { 10.10.10.10: { infra_seq: 1 }} ,vars: { repo_enabled: false }}
    etcd:  { hosts: { 10.10.10.10: { etcd_seq: 1  }} ,vars: { etcd_cluster: etcd  }}
    #minio: { hosts: { 10.10.10.10: { minio_seq: 1 }} ,vars: { minio_cluster: minio }}

    #----------------------------------------------#
    # pgEdge Database Cluster
    #----------------------------------------------#
    pg-meta:
      hosts:
        10.10.10.10: { pg_seq: 1, pg_role: primary }
      vars:
        pg_cluster: pg-meta
        pg_users:
          - {name: dbuser_meta ,password: DBUser.Meta   ,pgbouncer: true ,roles: [dbrole_admin]    ,comment: pigsty admin user }
          - {name: dbuser_view ,password: DBUser.Viewer ,pgbouncer: true ,roles: [dbrole_readonly] ,comment: read-only viewer for meta database }
        pg_databases:
          - {name: meta ,baseline: cmdb.sql ,comment: pigsty meta database ,schemas: [pigsty] ,extensions: [spock, snowflake, lolor]}
        pg_hba_rules:   # https://pigsty.io/docs/pgsql/config/hba
          - { user: all ,db: all ,addr: intra ,auth: pwd ,title: 'everyone intranet access with password' ,order: 800 }
        pg_crontab:     # https://pigsty.io/docs/pgsql/admin/crontab
          - '00 01 * * * /pg/bin/pg-backup full'

        # pgEdge Ad Hoc Settings
        pg_mode: pgedge                               # pgEdge compatible mode
        pg_packages: [ pgedge, pgsql-common ]         # install pgEdge kernel package + common utils
        pg_extensions: [ spock, snowflake, lolor ]    # ensure pgEdge extension packages are installed
        pg_libs: 'spock, lolor, pg_stat_statements, auto_explain' # preload required libs for pgEdge logical replication

  vars:
    #----------------------------------------------#
    # INFRA : https://pigsty.io/docs/infra/param
    #----------------------------------------------#
    version: v4.2.0                   # pigsty version string
    admin_ip: 10.10.10.10             # admin node ip address
    region: default                   # upstream mirror region: default,china,europe
    infra_portal:                     # infra services exposed via portal
      home : { domain: i.pigsty }     # default domain name

    #----------------------------------------------#
    # NODE : https://pigsty.io/docs/node/param
    #----------------------------------------------#
    nodename_overwrite: false           # do not overwrite node hostname on single node mode
    node_repo_modules: node,infra,pgsql # add these repos directly to the singleton node
    node_tune: oltp                     # node tuning specs: oltp,olap,tiny,crit

    #----------------------------------------------#
    # PGSQL : https://pigsty.io/docs/pgsql/param
    #----------------------------------------------#
    pg_version: 17                      # pgEdge kernel is compatible with postgres 17
    pg_conf: oltp.yml                   # pgsql tuning specs: {oltp,olap,tiny,crit}.yml

    #----------------------------------------------#
    # PASSWORD : https://pigsty.io/docs/setup/security/
    #----------------------------------------------#
    grafana_admin_password: pigsty
    grafana_view_password: DBUser.Viewer
    pg_admin_password: DBUser.DBA
    pg_monitor_password: DBUser.Monitor
    pg_replication_password: DBUser.Replicator
    patroni_password: Patroni.API
    haproxy_admin_password: pigsty
    minio_secret_key: S3User.MinIO
    etcd_root_password: Etcd.Root
...

配置解读

pgedge 模板在 pg-meta 集群中启用 pg_mode: pgedge,并预装 pgEdge 核心扩展用于逻辑复制与边缘分布式场景。

关键特性

  • 使用 pgedge 内核包替代标准 PostgreSQL(兼容 PG17)
  • 默认安装 spocksnowflakelolor 扩展
  • 默认预加载 spocklolor,便于后续多主复制配置
  • 保留 Pigsty 的标准备份、监控与运维能力

适用场景

  • 多地域边缘部署与就近写入
  • 需要多主逻辑复制与冲突处理能力
  • 从单节点验证逐步扩展到分布式拓扑

注意事项

  • 当前模板用于单节点内核验证,生产多主需额外规划节点拓扑与复制策略
  • 默认 pg_version: 17,建议与目标集群版本保持一致
  • 进行跨地域复制前,请先评估网络时延与冲突处理策略

最后修改 2026-02-27: update config tempaltes (9dd763f)