解决死锁导致网站访问故障的具体实例

use master       
go          
declare @spid int,@bl int       
DECLARE s_cur CURSOR FOR           
select  0 ,blocked            
from (select * from sysprocesses where  blocked>0 ) a            
where not exists(select * from (select * from sysprocesses where  blocked>0 ) b            
where a.blocked=spid)            
union select spid,blocked from sysprocesses where  blocked>0            
OPEN s_cur            
FETCH NEXT FROM s_cur INTO @spid,@bl            
WHILE @@FETCH_STATUS = 0            
begin           
if @spid =0            
select '引起数据库死锁的是:           
 '  CAST(@bl AS VARCHAR(10))   '进程号,其执行的SQL语法如下'            
else            
select '进程号SPID：'  CAST(@spid AS VARCHAR(10))  '被'   '           
 进程号SPID：'  CAST(@bl AS VARCHAR(10))  '阻塞,其当前进程执行的SQL语法如下'            
DBCC INPUTBUFFER (@bl )            
FETCH NEXT FROM s_cur INTO @spid,@bl            
end            
CLOSE s_cur            
DEALLOCATE s_cur            
exec sp_who2

4、查看当前进程,或死锁进程,并能自动杀掉死进程：

处理死锁

查看当前进程,或死锁进程,并能自动杀掉死进程。因为是针对死的,所以假如有死锁进程,只能查看死锁进程。当然,您能够通过参数控制,不管有没有死锁,都只查看死锁进程。

调用示例

exec p_lockinfo            
--*/            
create proc p_lockinfo            
@kill_lock_spid bit=1, --是否杀掉死锁的进程,1 杀掉, 0 仅显示            
@show_spid_if_nolock bit=1 --假如没有死锁的进程,            
是否显示正常进程信息,1 显示,0 不显示            
as            
declare @count int,@s nvarchar(1000),@i int            
select id=identity(int,1,1),标志,            
进程ID=spid,线程ID=kpid,块进程ID=blocked,数据库ID=dbid,            
数据库名=db_name(dbid),用户ID=uid,用户名=loginame,累计CPU时间=cpu,            
登陆时间=login_time,打开事务数=open_tran, 进程状态=status,            
工作站名=hostname,应用程式名=program_name,工作站进程ID=hostprocess,            
域名=nt_domain,网卡地址=net_address            
into #t from(            
select 标志='死锁的进程',            
spid,kpid,a.blocked,dbid,uid,loginame,cpu,login_time,open_tran,            
status,hostname,program_name,hostprocess,nt_domain,net_address,            
s1=a.spid,s2=0            
from master..sysprocesses a join (            
select blocked from master..sysprocesses group by blocked            
)b on a.spid=b.blocked where a.blocked=0            
union all            
select '|_牺牲品_>',            
spid,kpid,blocked,dbid,uid,loginame,cpu,login_time,open_tran,            
status,hostname,program_name,hostprocess,nt_domain,net_address,            
s1=blocked,s2=1            
from master..sysprocesses a where blocked<>0            
)a order by s1,s2            
select @count=@@rowcount,@i=1            
if @count=0 and @show_spid_if_nolock=1            
begin            
insert #t            
select 标志='正常的进程',            
spid,kpid,blocked,dbid,db_name(dbid),uid,loginame,cpu,login_time,            
open_tran,status,hostname,program_name,hostprocess,nt_domain,net_address            
from master..sysprocesses            
set @count=@@rowcount            
end            
if @count>0            
begin            
create table #t1(id int identity(1,1),a nvarchar(30),            
b Int,EventInfo nvarchar(255))            
if @kill_lock_spid=1            
begin            
declare @spid varchar(10),@标志 varchar(10)            
while @i<=@count            
begin            
select @spid=进程ID,@标志=标志 from #t where id=@i            
insert #t1 exec('dbcc inputbuffer(' @spid ')')            
if @标志='死锁的进程' exec('kill ' @spid)            
set @i=@i 1            
end           
 end           
 else            
while @i<=@count            
begin            
select @s='dbcc inputbuffer(' cast(进程ID as varchar) ')'           
 from #t where id=@i            
insert #t1 exec(@s)            
set @i=@i 1            
end            
select a.*,进程的SQL语句=b.EventInfo           
 from #t a join #t1 b on a.id=b.id            
end            
go