通过查询结果,可以知道,有一条alter 修改这个表的名字的ddl语句 一直卡在那里,导致后面的select都是卡住的 经过和研发确认,确实是执行了表名的修改的动作。 3.2 杀掉阻塞进程 找到了阻塞的进程,直接干掉 SELECT pg_terminate_backend ( 5927 ); 括号里的5927是阻塞进程的ID。 这个进程被杀掉之后,查询的语句执行...
1.查下超过10 s的查询语句 select*From pg_stat_activitywherequery_start<=now()- interval'10 sec'and state notin('idle') and pid<>pg_backend_pid() and query ilike'select%'order by query_start ; 2. 超过10s的查询会被干掉 selectpg_terminate_backend(pid) From pg_stat_activitywherequery_st...
select xact_start, query_start, backend_start, state_change, state from pg_stat_activity where pid in (70334); 4.4 行琐问题解决 通过KILL会话即可解决行琐问题 select pg_terminate_backend(67712); 随后观察到会话2中的update执行成功 五、结论 pgrowlocks是一个强大的工具,它为PostgreSQL的锁管理提供了...
and pid<>pg_backend_pid() and query ilike 'select%' order by query_start ; 1. 2. 3. 4. 5. 6. 2. 超过10s的查询会被干掉 select pg_terminate_backend(pid) From pg_stat_activity where query_start<=now()- interval'10 sec' and state not in ('idle') and pid<>pg_backend_pid() ...
selectpg_cancel_backend('pid');-- 返回t, 但sql还在执行selectpg_terminate_backend('pid');--同上 客户端层重启 (失败) 客户端重启Dbever, 连接还在. 客户端重启操作系统, 连接也还在. 应该就是在数据库层面hang死了. 服务端操作系统层kill (成功) ...
(12.5) Type "help" for help...public.t_login set flag = 1 where login_time > c1; --检查登录失败次数是否大于3,若大于3则锁定用户 for res in select user_name...('alter user %I nologin',res); --断开当前被锁定用户会话 EXECUTE 'select pg_catalog.pg_terminate_backend(pid) from...fai...
'pg_cancel_backend','pg_reload_co nf','pg_rotate_logfile','pg_terminate_backend','pg_create_restore_po int','pg_current_xlog_insert_location','pg_current_xlog_location','p g_start_backup','pg_stop_backup','pg_switch_xlog','pg_xlogfile_name' ,'pg_xlogfile_name_offset','pg_x...
pg_signal_backend (Pg 9.6+) This is again very simple, basically gives user ability to runpg_cancel_backend()andpg_terminate_backend()functions, for backend that don't belong to the user. So, normally, any user canpg_cancel_backend()orpg_terminate_backend()to any backend that is logged...
如果会话空闲，则pg_stat_activity显示该会话中最后执行的语句。所以这仅仅意味着所有这些会话都使用roll...