(1)數(shù)據(jù)庫(kù)內(nèi)操作：

方案一，較保守、風(fēng)險(xiǎn)低，但是針對(duì)高并發(fā)的系統(tǒng)效果不好。因?yàn)閗ill的速度慢，跟不上再次上來(lái)的會(huì)話。

SELECT 'select pg_terminate_backend('||pid||');' FROM pg_stat_activity

WHERE pid <> pg_backend_pid() -- 不kill掉自己的進(jìn)程

and datname='ZZZ' --涉及到的數(shù)據(jù)庫(kù)名

and usename='ZZZ' --涉及到的用戶名

and query like '%ZZZ%' – 涉及到的語(yǔ)句

order by (now()-query_start) desc – 根據(jù)執(zhí)行時(shí)間長(zhǎng)短排序，先kill執(zhí)行時(shí)間長(zhǎng)的

;

方案二，可以針對(duì)高并發(fā)系統(tǒng)，會(huì)話上來(lái)很快，且kong端雖然限流但是還是沒有限制住(可能是開發(fā)沒找對(duì)接口，報(bào)給運(yùn)維限制了kong，但是還是有大量的會(huì)話進(jìn)來(lái))

1. 先確認(rèn)pid對(duì)應(yīng)的sql是需要kill的sql，沒有別的類似相似的sql干擾：

SELECT pid,query FROM pg_stat_activity

WHERE pid <> pg_backend_pid()

and datname='XXX'

and usename='YYY' and state='active'

and query like '%ZZZZZZZZ%'

order by (now()-query_start) desc；

如：

SELECT pid,query FROM pg_stat_activity

WHERE pid <> pg_backend_pid()

and datname='flysafe_websdite'

and usename='app_rw' and state='active'

and query like '%SELECT * FROM "quiz_info" WHERE "quiz_info"."deleted_at" IS NULL AND (("questionnaire_id" IN ($1)) AND (enc_sn = $2))%'

order by (now()-query_start) desc；

2.然后批量循環(huán)kill session

select pg_terminate_backend(pid) from (SELECT pid FROM pg_stat_activity

WHERE pid <> pg_backend_pid()

and datname='XXX'

and usename='YYY' and state='active'

and query like '%ZZZ%'

) a \watch 5;

如：

select pg_terminate_backend(pid) from (SELECT pid FROM pg_stat_activity

WHERE pid <> pg_backend_pid()

and datname='flysafe_websdite'

and usename='app_rw' and state='active'

and query like '%SELECT * FROM "quiz_info" WHERE "quiz_info"."deleted_at" IS NULL AND (("questionnaire_id" IN ($1)) AND (enc_sn = $2))%'

) a \watch 5;

總結(jié)

以上是生活随笔為你收集整理的oracle数据库 杀进程,数据库应急杀进程脚本的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。