查看oracle死锁进程并结束死锁

Posted 2020-10-05 Chr☆s Kwok 的技术笔记

--查看锁表进程SQL语句1：

select sess.sid, sess.serial#, lo.oracle_username, lo.os_user_name, ao.object_name, lo.locked_mode

from v$locked_object lo, dba_objects ao, v$session sess

where ao.object_id = lo.object_id and lo.session_id = sess.sid;

 

--查看锁表进程SQL语句2：

select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID;

 

--杀掉锁表进程：

--如有記錄則表示有lock，記錄下SID和serial# ，將記錄的ID替換下面的738,1429，即可解除LOCK

alter system kill session ‘738,1429‘;

 

 

--用这个可以查（可以查看哪台机器哪个用户锁了记录, 其中command是用来杀掉锁住记录的session ）：

select s.sid,s.machine,o.object_name,l.oracle_username,l.locked_mode, ‘ALTER SYSTEM KILL SESSION ‘‘‘||s.sid||‘, ‘||s.serial#||‘‘‘;‘ Command

from v$locked_object l,v$session s,all_objects o where l.session_id=s.sid and l.object_id=o.object_id;

 

select V$SESSION.sid,v$session.SERIAL#,v$process.spid,

rtrim(object_type) object_type,rtrim(owner) || ‘.‘ || object_name object_name,

decode(lmode, 0, ‘None‘,

1, ‘Null‘,

2, ‘Row-S‘,

3, ‘Row-X‘,

4, ‘Share‘,

5, ‘S/Row-X‘,

6, ‘Exclusive‘, ‘Unknown‘) LockMode,

decode(request, 0, ‘None‘,

1, ‘Null‘,

2, ‘Row-S‘,

3, ‘Row-X‘,

4, ‘Share‘,

5, ‘S/Row-X‘,

6, ‘Exclusive‘, ‘Unknown‘) RequestMode

,ctime, block b,

v$session.username,MACHINE,MODULE,ACTION,

decode(A.type,

‘MR‘, ‘Media Recovery‘,

‘RT‘,‘Redo Thread‘,

‘UN‘,‘User Name‘,

‘TX‘, ‘Transaction‘,

‘TM‘, ‘DML‘,

‘UL‘, ‘PL/SQL User Lock‘,

‘DX‘, ‘Distributed Xaction‘,

‘CF‘, ‘Control File‘,

‘IS‘, ‘Instance State‘,

‘FS‘, ‘File Set‘,

‘IR‘, ‘Instance Recovery‘,

‘ST‘, ‘Disk Space Transaction‘,

‘TS‘, ‘Temp Segment‘,

‘IV‘, ‘Library Cache Invalida-tion‘,

‘LS‘, ‘Log Start or Switch‘,

‘RW‘, ‘Row Wait‘,

‘SQ‘, ‘Sequence Number‘,

‘TE‘, ‘Extend Table‘,

‘TT‘, ‘Temp Table‘,

‘Unknown‘) LockType

from (SELECT * FROM V$LOCK) A, all_objects, V$SESSION, v$process

where A.sid > 6

and object_name<>‘OBJ$‘

and A.id1 = all_objects.object_id

and A.sid=v$session.sid

and v$process.addr=v$session.paddr;

 

--同样也是通过写sql从数据字典里查出来。

-- SELECT-SQL1 功能:检查被加锁的对象

select obj.OWNER||‘.‘||obj.OBJECT_NAME as OBJ_NAME, --// 对象名称(已经被锁住)

obj.SUBOBJECT_NAME as SUBOBJ_NAME, --// 子对象名称(已经被锁住)

obj.OBJECT_ID as OBJ_ID, --// 对象ID

obj.OBJECT_TYPE as OBJ_TYPE, --// 对象类型

lock_obj.SESSION_ID as SESSION_ID, --// 会话SESSION_ID

lock_obj.ORACLE_USERNAME as ORA_USERNAME, --// ORACLE系统用户名称

lock_obj.OS_USER_NAME as OS_USERNAME, --// 操作系统用户名称

lock_obj.PROCESS as PROCESS --// 进程编号

from

( select * from all_objects where object_id in (select object_id from v$locked_object)) obj,

v$locked_object lock_obj

where obj.object_id=lock_obj.object_id;

 

-- SELECT-SQL2 功能:检查被加锁的对象以及加锁的会话信息

-- 如果需要手工解除锁,请对照要解锁的对象,记下SESSION_ID,SERIAL# 项,然后运行下面的ALTER-SQL1

select LOCK_INFO.OWNER||‘.‘||LOCK_INFO.OBJ_NAME as OBJ_NAME, --// 对象名称(已经被锁住)

LOCK_INFO.SUBOBJ_NAME as SUBOBJ_NAME, --// 子对象名称(已经被锁住)

SESS_INFO.MACHINE as MACHINE, --// 机器名称

LOCK_INFO.SESSION_ID as SESSION_ID, --// 会话SESSION_ID

SESS_INFO.SERIAL# as SERIAL#, --// 会话SERIAL#

LOCK_INFO.ORA_USERNAME as ORA_USERNAME, --// ORACLE系统用户名称

LOCK_INFO.OS_USERNAME as OS_USERNAME, --// 操作系统用户名称

LOCK_INFO.PROCESS as PROCESS, --// 进程编号

LOCK_INFO.OBJ_ID as OBJ_ID, --// 对象ID

LOCK_INFO.OBJ_TYPE as OBJ_TYPE, --// 对象类型

SESS_INFO.LOGON_TIME as LOGON_TIME, --// 登录时间

SESS_INFO.PROGRAM as PROGRAM, --// 程序名称

SESS_INFO.STATUS as STATUS, --// 会话状态

SESS_INFO.LOCKWAIT as LOCKWAIT, --// 等待锁

SESS_INFO.ACTION as ACTION, --// 动作

SESS_INFO.CLIENT_INFO as CLIENT_INFO --// 客户信息

 

from

(

select obj.OWNER as OWNER,

obj.OBJECT_NAME as OBJ_NAME,

obj.SUBOBJECT_NAME as SUBOBJ_NAME,

obj.OBJECT_ID as OBJ_ID,

obj.OBJECT_TYPE as OBJ_TYPE,

lock_obj.SESSION_ID as SESSION_ID,

lock_obj.ORACLE_USERNAME as ORA_USERNAME,

lock_obj.OS_USER_NAME as OS_USERNAME,

lock_obj.PROCESS as PROCESS

from

( select * from all_objects where object_id in (select object_id from v$locked_object)) obj,

v$locked_object lock_obj

where obj.object_id=lock_obj.object_id

) LOCK_INFO,

(

select SID,

SERIAL#,

LOCKWAIT,

STATUS,

PROGRAM,

ACTION,

CLIENT_INFO,

LOGON_TIME,

MACHINE

from v$session

) SESS_INFO

where LOCK_INFO.SESSION_ID=SESS_INFO.SID ;

 

 

 

-- 看清楚了 下面就可以 杀死它了。

-- ALTER-SQL1 功能:杀死会话(SESSION_ID,SERIAL#),可以手工解除锁

-- 请手工修改SESSION_ID,SERIAL#为相应值

-- 注意:本功能慎重使用,有一定的破坏性,该SQL可以断开客户机和服务器的连接

ALTER SYSTEM KILL SESSION ‘SESSION_ID,SERIAL#‘;