PostgreSQL操作随记:修订间差异
来自三线的随记
小无编辑摘要 |
小无编辑摘要 |
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第8行: | 第8行: | ||
====配置文件==== | ====配置文件==== | ||
sed "s/max_connections = .*/max_connections = 1024/" /var/lib/postgresql/data/postgresql.conf|grep max_connection | sed "s/max_connections = .*/max_connections = 1024/" /var/lib/postgresql/data/postgresql.conf|grep max_connection | ||
sed -i "s/max_connections = .*/max_connections = 1024/" /var/lib/postgresql/data/postgresql.conf|grep max_connection | |||
====commands==== | ====commands==== |
2021年6月15日 (二) 19:43的版本
PostgreSQL默认用户: postgres
连接数相关
配置文件
sed "s/max_connections = .*/max_connections = 1024/" /var/lib/postgresql/data/postgresql.conf|grep max_connection
sed -i "s/max_connections = .*/max_connections = 1024/" /var/lib/postgresql/data/postgresql.conf|grep max_connection
commands
临时修改连接数(待验证)
alter system set max_connections=1024
查看连接数
select count(1) from pg_stat_activity;
查看最大连接数值
show max_connections;
查看保留连接数
show superuser_reserved_connections;
查看连接的客户端信息
SELECT * FROM pg_stat_activity