企业级分布式数据库怎么创建

# 安装PostgreSQL
sudo apt-get update
sudo apt-get install postgresql postgresql-contrib

# 配置主节点
sudo -u postgres psql -c "CREATE USER replicator WITH REPLICATION PASSWORD 'password';"
sudo -u postgres psql -c "ALTER SYSTEM SET wal_level = replica;"
sudo -u postgres psql -c "ALTER SYSTEM SET max_wal_senders = 10;"
sudo -u postgres psql -c "ALTER SYSTEM SET wal_keep_segments = 64;"

# 配置从节点
sudo -u postgres pg_basebackup -h master_host -U replicator -D /var/lib/postgresql/12/main -P -X stream -R

# 安装Pgpool-II
sudo apt-get install pgpool2

# 配置Pgpool-II
sudo cp /etc/pgpool2/pgpool.conf.sample /etc/pgpool2/pgpool.conf
sudo cp /etc/pgpool2/pool_passwd /etc/pgpool2/pool_passwd
sudo -u postgres psql -c "CREATE USER pgpool WITH PASSWORD 'password';"
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON DATABASE your_database TO pgpool;"