MySQL管理长时间运行查询
最常用的查询
select concat ('kill ',id,';') from
information_schema.processlist
where time >= 2
-- and user = '业务账号'
and command not in ('sleep','Connect')
and state not like ('waiting for table%lock');
and info like '%Metabase%'
MySQL -uroot -s -N -p -h -e "select concat ('kill ',id,';') from information_schema.processlist where INFO like 'SELECT xxx FROM%' " > kill.sql
RDS提供的存储过程:
create event my_long_running_query_monitor
on schedule every 5 minute
starts '2015-09-15 11:00:00'
on completion preserve enable do
begin
declare v_sql varchar(500);
declare no_more_long_running_query integer default 0;
declare c_tid cursor for
select concat ('kill ',id,';') from
information_schema.processlist
where time >= 3600
and user = substring(current_user(),1,instr(current_user(),'@')-1)
and command not in ('sleep')
and state not like ('waiting for table%lock');
declare continue handler for not found
set no_more_long_running_query=1;
open c_tid;
repeat
fetch c_tid into v_sql;
set @v_sql=v_sql;
prepare stmt from @v_sql;
execute stmt;
deallocate prepare stmt;
until no_more_long_running_query end repeat;
close c_tid;
end;
参考:https://help.aliyun.com/knowledge_detail/41735.html?spm=a2c4g.11186631.2.20.51106998SvntYb
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RDS中的参数
loose_max_statement_time
管理长查询的shell脚本
#!/bin/bash
password=xxxxxx
mysql -uroot -p$password -N -s -e "select concat ('kill ',id,';') from
information_schema.processlist
where time >= 300
-- and user = '业务账号'
and command not in ('sleep','Connect')
and state not like ('waiting for table%lock');" > killmysqlsession.txt
#cat killmysqlsession.txt | while read line
#do
#echo $line
#mysql -uroot -p$password -e "$line"
#done
mysql -uroot -p$password < killmysqlsession.txt
#或者登陆实例source killmysqlsession.txt
本文标题:MySQL管理长时间运行查询
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