如何杀死我所有的postgresql连接?

我试着耙db:下降,但我得到:

ERROR:  database "database_name" is being accessed by other users
DETAIL:  There are 1 other session(s) using the database.

我尝试过关闭我从ps -ef | grep postgres中看到的进程,但这也不起作用:

kill: kill 2358 failed: operation not permitted

当前回答

案例: 查询执行失败:

DROP TABLE dbo.t_tabelname

解决方案: a.显示查询状态活动如下:

SELECT * FROM pg_stat_activity  ;

b.查找“查询”列包含的行:

'DROP TABLE dbo.t_tabelname'

c.在同一行中,获取“PID”列的值

example : 16409

d.执行以下脚本:

SELECT 
    pg_terminate_backend(25263) 
FROM 
    pg_stat_activity 
WHERE 
    -- don't kill my own connection!
    25263 <> pg_backend_pid()
    -- don't kill the connections to other databases
    AND datname = 'database_name'
    ;

其他回答

答案隐藏在上面的一条评论中:brew服务重新启动postgresql

MacOS,如果postgresql安装了brew:

brew services restart postgresql

删除postgresql会话/连接

退出postgres并重新启动。很简单,但每次对我都有效,而其他cli命令有时不能。

案例: 查询执行失败:

DROP TABLE dbo.t_tabelname

解决方案: a.显示查询状态活动如下:

SELECT * FROM pg_stat_activity  ;

b.查找“查询”列包含的行:

'DROP TABLE dbo.t_tabelname'

c.在同一行中,获取“PID”列的值

example : 16409

d.执行以下脚本:

SELECT 
    pg_terminate_backend(25263) 
FROM 
    pg_stat_activity 
WHERE 
    -- don't kill my own connection!
    25263 <> pg_backend_pid()
    -- don't kill the connections to other databases
    AND datname = 'database_name'
    ;

如果你需要断开一个特定用户的会话,这有助于我:

检查当前所有连接:

select * from pg_stat_activity; 

授予你的用户一个角色(不重要):

set role "db_admin";

杀死届:

select pg_terminate_backend(pid)
from pg_stat_activity
where usename = '*** USER NAME TO DISCONNECT ***';