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查找出SQLServer的死鎖和阻塞的源頭 --查找出SQLServer死鎖和阻塞的源頭

代碼如下:

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 '引起數(shù)據(jù)庫死鎖的是:

'+ CAST(@bl AS VARCHAR(10)) + '進(jìn)程號(hào),其執(zhí)行的SQL語法如下'

else

select '進(jìn)程號(hào)SPID：'+ CAST(@spid AS VARCHAR(10))+ '被' + '

進(jìn)程號(hào)SPID：'+ CAST(@bl AS VARCHAR(10)) +'阻塞,其當(dāng)前進(jìn)程執(zhí)行的SQL語法如下'

DBCC INPUTBUFFER (@bl )

FETCH NEXT FROM s_cur INTO @spid,@bl

end

CLOSE s_cur

DEALLOCATE s_cur

查看當(dāng)前進(jìn)程,或死鎖進(jìn)程,并能自動(dòng)殺掉死進(jìn)程 --查看當(dāng)前進(jìn)程,或死鎖進(jìn)程,并能自動(dòng)殺掉死進(jìn)程

因?yàn)槭轻槍λ赖?所以如果有死鎖進(jìn)程,只能查看死鎖進(jìn)程。當(dāng)然,你可以通過參數(shù)控制,不管有沒有死鎖,都只查看死鎖進(jìn)程。

復(fù)制代碼 代碼如下:

create proc p_lockinfo

@kill_lock_spid bit=1, --是否殺掉死鎖的進(jìn)程,1 殺掉, 0 僅顯示

@show_spid_if_nolock bit=1 --如果沒有死鎖的進(jìn)程,是否顯示正常進(jìn)程信息,1 顯示,0 不顯示

as

declare @count int,@s nvarchar(1000),@i int

select id=identity(int,1,1),標(biāo)志,

進(jìn)程ID=spid,線程ID=kpid,塊進(jìn)程ID=blocked,數(shù)據(jù)庫ID=dbid,

數(shù)據(jù)庫名=db_name(dbid),用戶ID=uid,用戶名=loginame,累計(jì)CPU時(shí)間=cpu,

登陸時(shí)間=login_time,打開事務(wù)數(shù)=open_tran, 進(jìn)程狀態(tài)=status,

工作站名=hostname,應(yīng)用程序名=program_name,工作站進(jìn)程ID=hostprocess,

域名=nt_domain,網(wǎng)卡地址=net_address

into #t from(

select 標(biāo)志='死鎖的進(jìn)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 '|_犧牲品_>',

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 標(biāo)志='正常的進(jìn)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),@標(biāo)志 varchar(10)

while @i<=@count

begin

select @spid=進(jìn)程ID,@標(biāo)志=標(biāo)志 from #t where id=@i

insert #t1 exec('dbcc inputbuffer('+@spid+')')

if @標(biāo)志='死鎖的進(jìn)程' exec('kill '+@spid)

set @i=@i+1

end

end

else

while @i<=@count

begin

select @s='dbcc inputbuffer('+cast(進(jìn)程ID as varchar)+')'

from #t where id=@i

insert #t1 exec(@s)

set @i=@i+1

end

select a.*,進(jìn)程的SQL語句=b.EventInfo

from #t a join #t1 b on a.id=b.id

end

go

exec p_lockinfo

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