1.postgres 开启wal归档: a.修改wal_level参数:alter system set wal_level= 'replica'; postgres=# alter system set
1.postgres 开启wal归档:
a.修改wal_level参数:
alter system set wal_level= 'replica';
postgres=# alter system set wal_level= 'replica';
ALTER SYSTEM
b.修改arcHive_mode参数:
alter system set archive_mode= 'on';
postgres=# alter system set archive_mode= 'on';
ALTER SYSTEM
c.修改archive_command 参数:
alter system set archive_command = '/bin/cp -i %p /pgdata/10/archive_wal/%f';
postgres=# alter system set archive_command = '/bin/cp -i %p /pgdata/10/archive_wal/%f';
ALTER SYSTEM
2.postgresql手动切换WAL日志的命令:
PG10之前:
select pg_switch_xlog();
PG10之后:
select pg_switch_wal();
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