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查找sqlserver查询死锁源头的方法sqlserver死锁监控

SQLServer监控方法 查询 查找 死锁 源头
2023-06-13 09:15:17 时间

查找出SQLServer的死锁和阻塞的源头--查找出SQLServer死锁和阻塞的源头

复制代码代码如下:


usemaster
go
declare@spidint,@blint
DECLAREs_curCURSORFOR
select 0,blocked
from(select*fromsysprocesseswhere blocked>0)a
wherenotexists(select*from(select*fromsysprocesseswhere blocked>0)b
wherea.blocked=spid)
unionselectspid,blockedfromsysprocesseswhere blocked>0
OPENs_cur
FETCHNEXTFROMs_curINTO@spid,@bl
WHILE@@FETCH_STATUS=0
begin
if@spid=0
select"引起数据库死锁的是:
"+CAST(@blASVARCHAR(10))+"进程号,其执行的SQL语法如下"
else
select"进程号SPID："+CAST(@spidASVARCHAR(10))+"被"+"
进程号SPID："+CAST(@blASVARCHAR(10))+"阻塞,其当前进程执行的SQL语法如下"
DBCCINPUTBUFFER(@bl)
FETCHNEXTFROMs_curINTO@spid,@bl
end
CLOSEs_cur
DEALLOCATEs_cur

查看当前进程,或死锁进程,并能自动杀掉死进程--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。

复制代码代码如下:


createprocp_lockinfo
@kill_lock_spidbit=1,--是否杀掉死锁的进程,1杀掉,0仅显示
@show_spid_if_nolockbit=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@countint,@snvarchar(1000),@iint
selectid=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#tfrom(
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
frommaster..sysprocessesajoin(
selectblockedfrommaster..sysprocessesgroupbyblocked
)bona.spid=b.blockedwherea.blocked=0
unionall
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
frommaster..sysprocessesawhereblocked<>0
)aorderbys1,s2

select@count=@@rowcount,@i=1

if@count=0and@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
frommaster..sysprocesses
set@count=@@rowcount
end

if@count>0
begin
createtable#t1(idintidentity(1,1),anvarchar(30),
bInt,EventInfonvarchar(255))
if@kill_lock_spid=1
begin
declare@spidvarchar(10),@标志varchar(10)
while@i<=@count
begin
select@spid=进程ID,@标志=标志from#twhereid=@i
insert#t1exec("dbccinputbuffer("+@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="dbccinputbuffer("+cast(进程IDasvarchar)+")"
from#twhereid=@i
insert#t1exec(@s)
set@i=@i+1
end
selecta.*,进程的SQL语句=b.EventInfo
from#tajoin#t1bona.id=b.id
end
go

execp_lockinfo

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