--源自 :http://support.microsoft.com/kb/308518/zh-cn
刷新当前活动将调用 sp_MSset_current_activity 存储过程。 在定义该存储过程时,首先将 lock_timeout变量设置为 5000 毫秒 (ms)。 然后,会创建两个全局临时表,它们针对下面的系统表在表级别发出 IX 锁,在键级别发出 X 锁:
如果在 5000 毫秒 (ms) 内未将前面的锁授予该进程,则查询将停止,并出现“症状”一节中显示的错误信息。
再刷新一次通常会成功。 但是,如果保持这两个锁的时间太长,则也会显示该错误信息。 如果执行 sp_lock 存储过程,则可计算出哪个进程正在对 dbid2 (tempdb) 的对象 ID 1、2 和 3 保持锁定。
查看锁信息:
转载自:http://topic.csdn.net/t/20040109/16/2650137.html
--查看锁信息
create table #t(req_spid int,obj_name sysname)
declare @s nvarchar(4000)
,@rid int,@dbname sysname,@id int,@objname sysname
declare tb cursor for
select distinct req_spid,dbname=db_name(rsc_dbid),rsc_objid
from master..syslockinfo where rsc_type in(4,5)
open tb
fetch next from tb into @rid,@dbname,@id
while @@fetch_status=0
begin
set @s= 'select @objname=name from [ '+@dbname+ ']..sysobjects where id=@id '
exec sp_executesql @s,N '@objname sysname out,@id int ',@objname out,@id
insert into #t values(@rid,@objname)
fetch next from tb into @rid,@dbname,@id
end
close tb
deallocate tb
select 进程id=a.req_spid
,数据库=db_name(rsc_dbid)
,类型=case rsc_type when 1 then 'NULL 资源(未使用) '
when 2 then '数据库 '
when 3 then '文件 '
when 4 then '索引 '
when 5 then '表 '
when 6 then '页 '
when 7 then '键 '
when 8 then '扩展盘区 '
when 9 then 'RID(行 ID) '
when 10 then '应用程序 '
end
,对象id=rsc_objid
,对象名=b.obj_name
,rsc_indid
from master..syslockinfo a left join #t b on a.req_spid=b.req_spid
go
drop table #t
转载自:http://topic.csdn.net/u/20080526/16/f6e18b4d-876a-4ac1-bf1f-c359a6786d3b.html
杀死锁:
/*--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,所以如果有死锁进程,只能查看死锁进程
当然,你可以通过参数控制,不管有没有死锁,都只查看死锁进程
--邹建 2004.4--*/
/*--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 --如果没有死锁的进程,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,应用程序名=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
杀死锁:
转载自:http://topic.csdn.net/t/20030922/10/2285767.html
--杀除发起阻塞的进程
--用法:sp_killblockingprocess waittime 其中waittime单位是毫秒,为已经阻塞的时间
--如:杀除发起阻塞已经有40秒的进程 exec sp_killblockingprocess
--注意:必须将该过程放在master库中
CREATE PROCEDURE sp_killblockingprocess
@waittime int =20000
as
DECLARE @spid smallint,@waitt int,@killp varchar(20)
declare cblocked CURSOR FOR
select spid,waittime from sysprocesses where blocked=0 and open_tran> 0 and waittime> @waittime
and spid in (select blocked from sysprocesses where blocked > 0 )
open cblocked
FETCH NEXT FROM cblocked into @spid,@waitt
WHILE @@FETCH_STATUS = 0
BEGIN
--kill @spid
select @killp= "KILL "+convert(char(10),@spid)
print @killp
exec sp_sqlexec @killp
FETCH NEXT FROM cblocked into @spid,@waitt
end
CLOSE cblocked
DEALLOCATE cblocked
杀掉相应数据库的进程
转载自:http://www.cnblogs.com/LCX/archive/2008/12/03/1346924.html
Create Proc Sp_KillAllProcessInDB
@DbName VarChar(100)
as
if db_id(@DbName) = Null
begin
Print 'DataBase dose not Exist'
end
else
Begin
Declare @spId Varchar(30)
DECLARE TmpCursor CURSOR FOR
Select 'Kill ' + convert(Varchar, spid) as spId
from master..SysProcesses
where db_Name(dbID) = @DbName
and spId <> @@SpId
and dbID <> 0
OPEN TmpCursor
FETCH NEXT FROM TmpCursor
INTO @spId
WHILE @@FETCH_STATUS = 0
BEGIN
Exec (@spId)
FETCH NEXT FROM TmpCursor
INTO @spId
END
CLOSE TmpCursor
DEALLOCATE TmpCursor
end
GO
--To Execute
Exec dbo.Sp_KillAllProcessInDB 'DBname'