日期:2014-05-16  浏览次数:20478 次

ORA-00031: session marked for kill 关于oracle的锁表处理

一些操作ORACLE中的进程被杀掉后,状态被置为"killed",但是锁定的资源很长时间不释放,实在没办法的时候,只好重启数据库。但这也不是最佳的解决方案,现在提供一种方法解决这种问题,那就是在ORACLE中杀不掉的,在OS一级再杀。

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1.下面的语句用来查询哪些对象被锁:


select object_name,machine,s.sid,s.serial#
from v$locked_object l,dba_objects o ,v$session s
where l.object_id = o.object_id and l.session_id=s.sid;

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2.下面的语句用来杀死一个进程:
alter system kill session '24,111'; (其中24,111分别是上面查询出的sid,serial#)

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如果通过以上方法不能解除锁定状态,则用以下方法:

ORA-00031: session marked for kill


Cause: The session specified in an ALTER SYSTEM KILL SESSION command cannot be killed immediately (because it is rolling back or blocked on a network operation), but it has been marked for kill. This means it will be killed as soon as possible after its current uninterruptible operation is done.

Action: No action is required for the session to be killed, but further executions of the ALTER SYSTEM KILL SESSION command on this session may cause the session to be killed sooner.

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首先执行下面的语句获得进程(线程)号:
select spid, osuser, s.program
from v$session s,v$process p
where s.paddr=p.addr and s.sid=24 (24是上面的sid)

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然后在OS上杀死这个进程(线程):
1)在unix上,用root身份或是相应的oracle身份执行命令:
#kill -9 12345(即第3步查询出的spid)
2)在windows(unix也适用)用orakill杀死线程,orakill是oracle提供的一个可执行命令,语法为:
orakill sid thread
其中:
sid:表示要杀死的进程属于的实例名
thread:是要杀掉的线程号,即第3步查询出的spid。
例:c:>orakill orcl 12345

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