# **Postgre SQL****开启****wal2json** ``` [postgres@localhost ~]$ git clone https://github.com/eulerto/wal2json.git [postgres@localhost ~]$ cd wal2json [postgres@localhost ~]$ PATH=/path/to/pg/bin:$PATH [postgres@localhost ~]$ USE_PGXS=1 make [postgres@localhost ~]$ USE_PGXS=1 make install ``` ##### 数据库配置文件中至少有以下配置,参数的值可以更大 ``` [postgres@localhost ~]$ cat /usr/local/pgsql/data/postgresql.conf wal_level = logical max_replication_slots = 1 max_wal_senders = 1 ``` ##### 重启PG数据库 ``` [postgres@localhost ~]$ pg_ctl stop -D /usr/local/pgsql/data [postgres@localhost ~]$ pg_ctl start -D /usr/local/pgsql/data ```