rac中 kull session会话脚本

方法：ALTER SYSTEM KILL SESSION '80, 6, @2';  --<= 80 sid,6 serial#,@2 inst_id

kill session 脚本如下：
select 'alter system kill session '''||a.sid||','||b.serial#||',@'||c.inst_id||''' immediate ;' from
gv$session a ,gv$session b, gv$session c
where a.username=b.username and c.sid=b.sid and a.serial#=c.serial#
and a.username='DOUDOU'; --<=username可以换成你想kill的用户

实验如下

环境：11.2.0.4 rac on redhat6.3

1.在2个不同的node登录2个doudou用户

[oracle@rac1 ~]$ sqlplus doudou/oracle

SQL*Plus: Release 11.2.0.4.0 Production on Sun Aug 24 16:33:54 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

DBA                            TEL                    MAIL
------------------------------ ---------------------- --------------------
oracle world of wenyu.he       18211103395            wenyu.he@bhaf.com.cn  <= edit glogin.sql

DOUDOU@doudou1>   <= doudou1 is rac1 instance

[oracle@rac2 ~]$ sqlplus doudou/oracle

SQL*Plus: Release 11.2.0.4.0 Production on Sun Aug 24 16:34:40 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

DBA                            TEL                    MAIL
------------------------------ ---------------------- --------------------
oracle world of wenyu.he       18211103395            wenyu.he@bhaf.com.cn

DOUDOU@doudou2>    <= doudou2 is rac2 instance

2.使用脚本生成批量kill session的语句
SYS@doudou1> select 'alter system kill session '''||a.sid||','||b.serial#||',@'||c.inst_id||''' immediate ;' from
  2  gv$session a ,gv$session b, gv$session c
  3  where a.username=b.username and c.sid=b.sid and a.serial#=c.serial#
  4  and a.username='DOUDOU';

'ALTERSYSTEMKILLSESSION'''||A.SID||','||B.SERIAL#||',@'||C.INST_ID||'''IMMEDIATE
--------------------------------------------------------------------------------
alter system kill session '63,93,@1' immediate ;
alter system kill session '57,33,@2' immediate ;

3.执行kill session
SYS@doudou1> alter system kill session '63,93,@1' immediate ;

System altered.

alert_doudou1.log如下：
Immediate Kill Session#: 63, Serial#: 93
Immediate Kill Session: sess: 0x763924c8  OS pid: 8806
--从日志来看,session已经被kill

SYS@doudou1> alter system kill session '57,33,@2' immediate ;

System altered.

alert_doudou2.log如下：
Immediate Kill Session#: 57, Serial#: 33
Immediate Kill Session: sess: 0x763a4a08  OS pid: 18221
--从日志来看,session已经被kill

4.验证session是否被kill掉
脚本继续执行一次查看结果
SYS@doudou1> select 'alter system kill session '''||a.sid||','||b.serial#||',@'||c.inst_id||''' immediate ;' from
  2  gv$session a ,gv$session b, gv$session c
where a.username=b.username and c.sid=b.sid and a.serial#=c.serial#
  3    4  and a.username='DOUDOU';

no rows selected
--从脚本输出结果表示session已经被kill

5.去节点实例看看当前session状态
DOUDOU@doudou1> select * from tab;
select * from tab
*
ERROR at line 1:
ORA-03135: connection lost contact
Process ID: 8806
Session ID: 63 Serial number: 93

DOUDOU@doudou2> select * from tab;   
select * from tab
*
ERROR at line 1:
ORA-03135: connection lost contact
Process ID: 18221
Session ID: 57 Serial number: 33
--session 确实已经被kill

总结：
RAC中的管理方法会和单实例略有不同，多看官档。希望可以（稳、准、狠）的管理好我的“RAC群”