Oracle 11g CPU负载很高紧急处理【负载100%】

\\ 查询负载很高前35个进程

ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head -35

\\ 查询前35负载高的sPID

ps aux|grep -v PID|sort -rn -k +3|head -35|awk '{print$2}'

\\ 把得到的spid替换进来（！！！注意不要少了逗号和分号！！！）

select sql_id from v$session
where paddr in(
select addr from v$process
where spid in(
'30907',
'31801',
'31463',
'31150',
'32289',
'31895',
'590',
'31952',
'611',
'32152',
'661',
'32542',
'32203',
'2019',
'2215'
)
)

查询结果显示，sql_id为 fm0738ywgbyxk 出现很多（异常sql_id）

---注：请替换成您实际的sql_id

---fm0738ywgbyxk
---12个进程

SELECT sid,serial#,sql_id from v$session where sql_id in ( 'fm0738ywgbyxk' );
SELECT count(*) from v$session where sql_id in ( 'fm0738ywgbyxk' );

---随机抽一条，查看一下具体是执行的啥内容

select sql_text from v$sqlarea a,v$session b where a.SQL_ID=b.PREV_SQL_ID and b.SID='291';

select c.SCHOOL_ID WAREHOUSE_ID, count( ARCHIVE_ID) SIGN,c.BUSINESS_TYPE from TB_CONTRACT c,FES_STAFF_ARCHIVE st where c.state!=2000 and st.id=c.ARCHIVE_ID and c.PAY_DATE between to_date('2020-02-01 00:00:00','yyyy-MM-dd HH24:MI:SS') and to_date('2020-04-27 23:59:59','yyyy-MM-dd HH24:MI:SS') and c.BUSINESS_TYPE in (17,21) group by c.SCHOOL_ID ,c.BUSINESS_TYPE

--- 生成kill语句

SELECT
'alter system kill session ''' || SID || ',' || serial# || ''';'
FROM
v$session
WHERE
sql_id IN ('fm0738ywgbyxk');

--- 执行生成的kill语句，如下：

alter system kill session '291,42431';
alter system kill session '483,24520';
alter system kill session '667,23176';
alter system kill session '768,57609';
alter system kill session '861,65267';
alter system kill session '1243,1739';
alter system kill session '1335,44615';
alter system kill session '1522,31640';
alter system kill session '1622,30425';
alter system kill session '1716,7696';
alter system kill session '1808,44494';
alter system kill session '2096,58865';

原文地址：https://www.cnblogs.com/eos666/p/12794084.html