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oracle杀死死锁进程

时间:2021-07-01 10:21:17 帮助过:31人阅读

先查看哪些表被锁住了 selectb.owner,b.object_name,a.session_id,a.locked_mode fromv$locked_objecta,dba_objectsb whereb.object_id=a.object_id; OWNEROBJECT_NAMESESSION_IDLOCKED_MODE -------------------------------------------------------------

先查看哪些表被锁住了

select b.owner,b.object_name,a.session_id,a.locked_mode
from v$locked_object a,dba_objects b
where b.object_id = a.object_id;


OWNER OBJECT_NAME SESSION_ID LOCKED_MODE
------------------------------ -------------------------------------- -------
WSSB SBDA_PSHPFTDT 22 3
WSSB_RTREPOS WB_RT_SERVICE_QUEUE_TAB 24 2
WSSB_RTREPOS WB_RT_NOTIFY_QUEUE_TAB 29 2
WSSB_RTREPOS WB_RT_NOTIFY_QUEUE_TAB 39 2
WSSB SBDA_PSDBDT 47 3
WSSB_RTREPOS WB_RT_AUDIT_DETAIL 47 3

select b.username,b.sid,b.serial#,logon_time
from v$locked_object a,v$session b
where a.session_id = b.sid order by b.logon_time;

USERNAME SID SERIAL# LOGON_TIME
------------------------------ ---------- ---------- -----------
WSSB_RTACCESS 39 1178 2006-5-22 1
WSSB_RTACCESS 29 5497 2006-5-22 1


杀会话

alter system kill session 'sid,serial#';

e.g

alter system kill session '29,5497';

如果有ora-00031错误,则在后面加immediate;

alter system kill session '29,5497' immediate;


-------------

1.查哪个过程被锁
查V$DB_OBJECT_CACHE视图:
SELECT * FROM V$DB_OBJECT_CACHE WHERE OWNER='过程的所属用户' AND CLOCKS!='0';

2. 查是哪一个SID,通过SID可知道是哪个SESSION.
查V$ACCESS视图:
SELECT * FROM V$ACCESS WHERE OWNER='过程的所属用户' AND NAME='刚才查到的过程名';

3. 查出SID和SERIAL#
查V$SESSION视图:
SELECT SID,SERIAL#,PADDR FROM V$SESSION WHERE SID='刚才查到的SID'
查V$PROCESS视图:
SELECT SPID FROM V$PROCESS WHERE ADDR='刚才查到的PADDR';

4. 杀进程
(1).先杀ORACLE进程:
ALTER SYSTEM KILL SESSION '查出的SID,查出的SERIAL#';
(2).再杀操作系统进程:
KILL -9 刚才查出的SPID

ORAKILL 刚才查出的SID 刚才查出的SPID


------------------
oracle的死锁
查询数据库死锁
select t2.username||' '||t2.sid||' '||t2.serial#||' '||t2.logon_time||' '||t3.sql_text
from v$locked_object t1,v$session t2,v$sqltext t3
where t1.session_id=t2.sid
and t2.sql_address=t3.address
order by t2.logon_time;

查询出来的结果就是有死锁的session了,
下面就是杀掉
拿到上面查询出来的SID和SERIAL#,填入到下面的语句中

alter system kill session 'sid,serial#';

一般情况可以解决数据库存在的死锁了,

或通过session id 查到对应的操作系统进程,在unix中杀掉操作系统的进程。
SELECT a.username,c.spid AS os_process_id,c.pid AS oracle_process_id FROM v$session a,v$process c
WHERE c.addr=a.paddr and a.sid= and a.serial#= ;
然后采用kill (unix) 或 orakill(windows )

在unix中
ps -ef|grep os_process_id
kill -9 os_process_id
ps -ef|grep os_process_id

----

经常在oracle的使用过程中碰到这个问题,所以也总结了一点解决方法:)
1)查找死锁的进程:
sqlplus "/as sysdba" (sys/change_on_install)
SELECT s.username,l.OBJECT_ID,l.SESSION_ID,s.SERIAL#,l.ORACLE_USERNAME,l.OS_USER_NAME,l.PROCESS
FROM V$LOCKED_OBJECT l,V$SESSION S WHERE l.SESSION_ID=S.SID;
2)kill掉这个死锁的进程:
alter system kill session ‘sid,serial#’; (其中sid=l.session_id)
3)如果还不能解决,
select pro.spid from v$session ses,v$process pro where ses.sid=XX and ses.paddr=pro.addr;
其中sid用死锁的sid替换。
exit
ps -ef|grep spid
其中spid是这个进程的进程号,kill掉这个Oracle进程。

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