sql server监控

sql server监控

http://www.mssqltips.com/sqlservertip/2522/sql-server-monitoring-checklist/

1.查看sql server 服务运行状态：

http://msdn.microsoft.com/zh-cn/library/ms189089%28v=sql.105%29.aspx

exec master.dbo.xp_servicecontrol 'QUERYSTATE', 'MSSQLServer'
exec master.dbo.xp_servicecontrol 'QUERYSTATE', 'SQLServerAgent'
exec master.dbo.xp_servicecontrol 'QUERYSTATE', 'SQLBrowser'

2.查看sql server agent 工作执行情况：

use msdb
go
select 'FAILED' as Status, cast(sj.name as varchar(100)) as "Job Name",
       cast(sjs.step_id as varchar(5)) as "Step ID",
       cast(sjs.step_name as varchar(30)) as "Step Name",
       cast(REPLACE(CONVERT(varchar,convert(datetime,convert(varchar,sjh.run_date)),102),'.','-')+' '+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),1,2)+':'+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),3,2)+':'+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),5,2) as varchar(30)) 'Start Date Time',
       sjh.message as "Message"
from sysjobs sj
join sysjobsteps sjs 
 on sj.job_id = sjs.job_id
join sysjobhistory sjh 
 on sj.job_id = sjh.job_id and sjs.step_id = sjh.step_id
where sjh.run_status <> 1
  and cast(sjh.run_date as float)*1000000+sjh.run_time > 
      cast(convert(varchar(8), getdate()-1, 112) as float)*1000000+70000 --yesterday at 7am
union
select 'FAILED',cast(sj.name as varchar(100)) as "Job Name",
       'MAIN' as "Step ID",
       'MAIN' as "Step Name",
       cast(REPLACE(CONVERT(varchar,convert(datetime,convert(varchar,sjh.run_date)),102),'.','-')+' '+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),1,2)+':'+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),3,2)+':'+SUBSTRING(RIGHT('000000'+CONVERT(varchar,sjh.run_time),6),5,2) as varchar(30)) 'Start Date Time',
       sjh.message as "Message"
from sysjobs sj
join sysjobhistory sjh 
 on sj.job_id = sjh.job_id
where sjh.run_status <> 1 and sjh.step_id=0
  and cast(sjh.run_date as float)*1000000+sjh.run_time >
      cast(convert(varchar(8), getdate()-1, 112) as float)*1000000+70000 --yesterday at 7am

3.查询数据库备份情况：

SELECT d.name AS "Database",
       ISNULL(CONVERT(VARCHAR,b.backupdate,120),'NEVER') AS "Last Full Backup"
FROM sys.databases d
LEFT JOIN (SELECT database_name,type,MAX(backup_finish_date) backupdate FROM backupset
           WHERE type LIKE 'D'
           GROUP BY database_name,type) b on d.name=b.database_name
WHERE (backupdate IS NULL OR backupdate < getdate()-1)
SELECT d.name AS "Database",
       ISNULL(CONVERT(VARCHAR,b.backupdate,120),'NEVER') AS "Last Log Backup"
FROM sys.databases d
LEFT JOIN (SELECT database_name,type,MAX(backup_finish_date) backupdate FROM backupset
           WHERE type LIKE 'L'
           GROUP BY database_name,type) b on d.name=b.database_name
WHERE recovery_model = 1
  AND (backupdate IS NULL OR backupdate < getdate()-1)

4.查看sql server 错误日志情况：

declare @Time_Start datetime;
declare @Time_End datetime;
set @Time_Start=getdate()-2;
set @Time_End=getdate();
-- Create the temporary table
CREATE TABLE #ErrorLog (logdate datetime
                      , processinfo varchar(255)
                      , Message varchar(500))
-- Populate the temporary table
INSERT #ErrorLog (logdate, processinfo, Message)
   EXEC master.dbo.xp_readerrorlog 0, 1, null, null , @Time_Start, @Time_End, N'desc';
-- Filter the temporary table
SELECT LogDate, Message FROM #ErrorLog
WHERE (Message LIKE '%error%' OR Message LIKE '%failed%') AND processinfo NOT LIKE 'logon'
ORDER BY logdate DESC
-- Drop the temporary table 
DROP TABLE #ErrorLog

5.查看磁盘剩余空间：

--剩余空间
exec master.dbo.xp_fixeddrives
--总空间和剩余空间
declare @svrName varchar(255)
declare @sql varchar(400)
--by default it will take the current server name, we can the set the server name as well
set @svrName = @@SERVERNAME
set @sql = 'powershell.exe -c "Get-WmiObject -ComputerName ' + QUOTENAME(@svrName,'''') + ' -Class Win32_Volume -Filter ''DriveType = 3'' | select name,capacity,freespace | foreach{$_.name+''|''+$_.capacity/1048576+''%''+$_.freespace/1048576+''*''}"'
--creating a temporary table
CREATE TABLE #output
(line varchar(255))
--inserting disk name, total space and free space value in to temporary table
insert #output
EXEC xp_cmdshell @sql
--script to retrieve the values in MB from PS Script output
select rtrim(ltrim(SUBSTRING(line,1,CHARINDEX('|',line) -1))) as drivename
      ,round(cast(rtrim(ltrim(SUBSTRING(line,CHARINDEX('|',line)+1,
      (CHARINDEX('%',line) -1)-CHARINDEX('|',line)) )) as Float),0) as 'capacity(MB)'
      ,round(cast(rtrim(ltrim(SUBSTRING(line,CHARINDEX('%',line)+1,
      (CHARINDEX('*',line) -1)-CHARINDEX('%',line)) )) as Float),0) as 'freespace(MB)'
from #output
where line like '[A-Z][:]%'
order by drivename
--script to retrieve the values in GB from PS Script output
select rtrim(ltrim(SUBSTRING(line,1,CHARINDEX('|',line) -1))) as drivename
      ,round(cast(rtrim(ltrim(SUBSTRING(line,CHARINDEX('|',line)+1,
      (CHARINDEX('%',line) -1)-CHARINDEX('|',line)) )) as Float)/1024,0) as 'capacity(GB)'
      ,round(cast(rtrim(ltrim(SUBSTRING(line,CHARINDEX('%',line)+1,
      (CHARINDEX('*',line) -1)-CHARINDEX('%',line)) )) as Float) /1024 ,0)as 'freespace(GB)'
from #output
where line like '[A-Z][:]%'
order by drivename
--script to drop the temporary table
drop table #output

6.sql server内存使用情况：

SELECT available_physical_memory_kb/1024 as "Total Memory MB",
       available_physical_memory_kb/(total_physical_memory_kb*1.0)*100 AS "% Memory Free"
FROM sys.dm_os_sys_memory

7.sql 执行消耗情况（IO vs. CPU vs. Elapsed Time）：

SELECT top 10 text as "SQL Statement",
   last_execution_time as "Last Execution Time",
   (total_logical_reads+total_physical_reads+total_logical_writes)/execution_count as [Average IO],
   (total_worker_time/execution_count)/1000000.0 as [Average CPU Time (sec)],
   (total_elapsed_time/execution_count)/1000000.0 as [Average Elapsed Time (sec)],
   execution_count as "Execution Count",
   qp.query_plan as "Query Plan"
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.plan_handle) st
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
order by total_elapsed_time/execution_count desc

8.数据库连接情况：

SELECT spid, kpid, blocked, d.name, open_tran, status, hostname,
cmd, login_time, loginame, net_library
FROM sys.sysprocesses p
INNER JOIN sys.databases d 
 on p.dbid=d.database_id

9.正在处理的请求数：

DECLARE @BRPS BIGINT
SELECT @BRPS=cntr_value 
FROM sys.dm_os_performance_counters
WHERE counter_name LIKE 'Batch Requests/sec%'
WAITFOR DELAY '000:00:10'
SELECT (cntr_value-@BRPS)/10.0 AS "Batch Requests/sec"
FROM sys.dm_os_performance_counters
WHERE counter_name LIKE 'Batch Requests/sec%'

9.