zoukankan      html  css  js  c++  java
  • 查找堵塞

    --查找堵塞源
     SELECT spid 被锁进程ID, blocked 锁进程ID,status 被锁状态, login_time 登录时间, 
    SUBSTRING(SUSER_SNAME(sid),1,30) 被锁进程登陆帐号, 
    SUBSTRING(hostname,1,12) 被锁进程用户机器名称, 
    SUBSTRING(DB_NAME(dbid),1,13) 被锁进程数据名称, 
    cmd 被锁进程命令, 
    waittype 被锁进程等待类型
     FROM master.sys.sysprocesses  WHERE SPID>50 and blocked!=0 AND spid<>blocked   order by waittime desc 
    
    
     --堵塞源的堵塞类型
     SELECT 
     CASE  WHEN waittime!=0X0000 AND open_tran>=0 AND status='runnable' THEN N'运行时间太长' 
     WHEN waittime=0X0000 AND open_tran>0 AND status='sleeping' THEN N'sleeping进程事物未提交' 
     WHEN waittime in(0x0800,0x0063) AND open_tran>=0 AND status='runnable' THEN N'没有及时取走结果集' 
     WHEN waittime=0X0000 AND open_tran>0 AND status='rollback' THEN N'超时或主动回滚' 
     WHEN waittime>=0X0000 AND open_tran>=0 AND status='runnable' THEN N'死锁以堵塞体现' 
     END  AS Reason,
     b.text SQL,DB_NAME(a.dbid) as DB,program_name,hostname,loginame
     FROM master.sys.sysprocesses a
     CROSS APPLY sys.dm_exec_sql_text(a.sql_handle) b 
     WHERE SPID=346
    --查询会话的详细信息
    select s.session_id,s.status,s.login_time,s.host_name,
    s.program_name,s.host_process_id,s.client_version,
    s.client_interface_name,s.login_name,s.last_request_start_time,
    s.last_request_end_time,c.connect_time,c.net_transport,
    c.net_packet_size,c.client_net_address,r.request_id,r.start_time,
    r.status,r.command,r.database_id,r.user_id,r.blocking_session_id,
    r.wait_type,r.wait_time,r.last_wait_type,r.wait_resource,
    r.open_transaction_count,r.transaction_id,r.percent_complete,
    r.cpu_time,r.reads,r.writes,r.granted_query_memory
    from sys.dm_exec_requests r
    right outer join sys.dm_exec_sessions s on r.session_id=s.session_id
    right outer join sys.dm_exec_connections  c on s.session_id=c.session_id
    where s.is_user_process=1
  • 相关阅读:
    转“C++之文件IO操作流”
    编译过程的一些小知识——#pragma once与 #ifndef的区别以及介绍
    编译过程的一些小知识——内部连接与外部连接
    VC MFC如何使用Console输出调试信息..
    windows 下ping命令,t选项
    电力间隔定义
    这样的要求不过分
    拾零之 :if 判断顺序的问题
    CMarkup 解析XML
    XinZhou housing mobile phone
  • 原文地址:https://www.cnblogs.com/JinweiChang/p/10449923.html
Copyright © 2011-2022 走看看