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remaining connection slots are reserved for non-replication superuser connections

作者:互联网

使用客户端工具连接pg,连接失败,报错以下错误:

FATAL: remaining connection slots are reserved for non-replication superuser connections 

查看数据库连接状态和配置信息

select * from pg_stat_activity where pid<>pg_backend_pid() and state='idle';##pg_backend_pid()的结果是当前会话的pid
select datname,datconnlimit from pg_database ;
select current_setting('max_connections');
select current_setting('superuser_reserved_connections');

  

发现参数max_connections设置太低。

因为是测试环境,就先把idle状态的连接先杀掉:

##把数据库中的所有的空闲会话全部kill掉
select pg_terminate_backend(pid) from pg_stat_activity where pid<>pg_backend_pid() and state='idle';

 然后修改参数max_connections的值。

 

标签:superuser,non,reserved,pid,connections,pg,select,backend
来源: https://www.cnblogs.com/abclife/p/10955132.html