从问题入手帮你解决Oracle杀死死锁进程

2/9/2008来源:Oracle教程人气:5560

Oracle杀死死锁进程 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$session b where a.session_id = b.sid order by b.logon_time; USERNAME SID SERIAL# LOGON_TIME ------------------------------ ---------- ------- WSSB_RTaccess 39 1178 2006-5-22 1 WSSB_RTACCESS 29 5497 2006-5-22 1
杀进程中的会话:
alter system kill session 'sid,serial#'; e.g alter system kill session '29,5497';
假如有ora-00031错误,则在后面加immediate;alter system kill session '29,5497' immediate; 如何杀死oracle死锁进程 1.查哪个过程被锁: 查V$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$PROCESS WHERE ADDR='刚才查到的PADDR'; 4. 杀进程: (1)先杀ORACLE进程: ALTER SYSTEM KILL SESSION '查出的SID,查出的SERIAL#'; (2)再杀操作系统进程: KILL -9 刚才查出的SPID或ORAKILL 刚才查出的SID 刚才查出的SPID。 Oracle的死锁 查询数据库死锁:
select t2.username' 't2.sid' 't2.serial#' 't2.logon_time' 't3.sql_text from v$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 -efgrep os_process_id kill -9 os_process_id ps -efgrep 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)假如还不能解决:
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 -efgrep spid
其中spid是这个进程的进程号,kill掉这个Oracle进程。