首页 > 数据库 > SQL Server > 正文

SQL Server自动化运维系列——监控性能指标脚本(Power Shell)

2024-08-31 00:54:42
字体:
来源:转载
供稿:网友
SQL Server自动化运维系列——监控性能指标脚本(Power Shell)

需求描述

一般在生产环境中,有时候需要自动的检测指标值状态,如果发生异常,需要提前预警的,比如发邮件告知,本篇就介绍如果通过Power shell实现状态值监控

监控值范围

根据经验,作为DBA一般需要监控如下系统能行指标

  cpu:     /PRocessor(_Total)/% Processor Time    /Processor(_Total)/% Privileged Time     /SQLServer:SQL Statistics/Batch Requests/sec    /SQLServer:SQL Statistics/SQL Compilations/sec    /SQLServer:SQL Statistics/SQL Re-Compilations/sec    /System/Processor Queue Length    /System/Context Switches/sec   Memory:     /Memory/Available Bytes    /Memory/Pages/sec    /Memory/Page Faults/sec    /Memory/Pages Input/sec    /Memory/Pages Output/sec    /Process(sqlservr)/Private Bytes    /SQLServer:Buffer Manager/Buffer cache hit ratio    /SQLServer:Buffer Manager/Page life expectancy    /SQLServer:Buffer Manager/Lazy writes/sec    /SQLServer:Memory Manager/Memory Grants Pending    /SQLServer:Memory Manager/Target Server Memory (KB)    /SQLServer:Memory Manager/Total Server Memory (KB)   Disk:     /PhysicalDisk(_Total)/% Disk Time    /PhysicalDisk(_Total)/Current Disk Queue Length    /PhysicalDisk(_Total)/Avg. Disk Queue Length    /PhysicalDisk(_Total)/Disk Transfers/sec    /PhysicalDisk(_Total)/Disk Bytes/sec    /PhysicalDisk(_Total)/Avg. Disk sec/Read    /PhysicalDisk(_Total)/Avg. Disk sec/Write   SQL Server:     /SQLServer:access Methods/FreeSpace Scans/sec    /SQLServer:Access Methods/Full Scans/sec    /SQLServer:Access Methods/Table Lock Escalations/sec    /SQLServer:Access Methods/Worktables Created/sec    /SQLServer:General Statistics/Processes blocked    /SQLServer:General Statistics/User Connections    /SQLServer:Latches/Total Latch Wait Time (ms)    /SQLServer:Locks(_Total)/Lock Timeouts (timeout > 0)/sec    /SQLServer:Locks(_Total)/Lock Wait Time (ms)    /SQLServer:Locks(_Total)/Number of Deadlocks/sec    /SQLServer:SQL Statistics/Batch Requests/sec    /SQLServer:SQL Statistics/SQL Re-Compilations/sec

上述指标含义,可以参照我上一篇文章:SQL Server需要监控哪些计数器

监控脚本

$server = "(local)"$uid = "sa"$db="master"$pwd="passWord"$mailprfname = "SendEmail"$recipients = "787449667@QQ.com"$subject = "数据库指标异常了!"$computernamexml = "f:/computername.xml"$alter_cpuxml = "f:/alter_cpu.xml"function GetServerName($xmlpath){    $xml = [xml] (Get-Content $xmlpath)    $return = New-Object Collections.Generic.List[string]    for($i = 0;$i -lt $xml.computernames.ChildNodes.Count;$i++)    {        if ( $xml.computernames.ChildNodes.Count -eq 1)        {            $cp = [string]$xml.computernames.computername        }        else        {            $cp = [string]$xml.computernames.computername[$i]        }        $return.Add($cp.Trim())    }    $return}function GetAlterCounter($xmlpath){    $xml = [xml] (Get-Content $xmlpath)    $return = New-Object Collections.Generic.List[string]    $list = $xml.counters.Counter    $list}function CreateAlter($message){    $SqlConnection = New-Object System.Data.SqlClient.SqlConnection     $CnnString ="Server = $server; Database = $db;User Id = $uid; Password = $pwd"     $SqlConnection.ConnectionString = $CnnString     $CC = $SqlConnection.CreateCommand();     if (-not ($SqlConnection.State -like "Open")) { $SqlConnection.Open() }         $cc.CommandText=" EXEC msdb..sp_send_dbmail              @profile_name  = '$mailprfname'            ,@recipients = '$recipients'            ,@body = '$message'            ,@subject = '$subject'"     $cc.ExecuteNonQuery()|out-null     $SqlConnection.Close();}$names = GetServerName($computernamexml)$pfcounters = GetAlterCounter($alter_cpuxml)foreach($cp in $names){    $p = New-Object Collections.Generic.List[string]    $report = ""    foreach ($pfc in $pfcounters)    {        $b = ""        $counter ="//"+$cp+$pfc.get_InnerText().Trim()        $p.Add($counter)            }    $count = Get-Counter $p    for ($i = 0; $i -lt $count.CounterSamples.Count; $i++)    {        $v = $count.CounterSamples.Get($i).CookedValue        $pfc = $pfcounters[$i]        #$pfc.get_InnerText()        $b = ""        $lg = ""        if($pfc.Operator -eq "lt")        {            if ($v -ge [double]$pfc.alter)                {$b = "alter"                $lg = "Greater Than"}        }        elseif ($pfc.operator -eq "gt")        {            if( $v -le [double]$pfc.alter)                {$b = "alter"                $lg = "Less Than"}        }        if($b -eq "alter")        {            $path = "//"+$cp+$pfc.get_InnerText()                        $item = "{0}:{1};{2} Threshold:{3}" -f $path,$v.ToString(),$lg,$pfc.alter.Trim()            $report += $item + "`n"        }            }    if($report -ne "")    {        #生产警告 参数 计数器,阀值,当前值        CreateAlter $report    }}

其中涉及到2个配置文件:computernamexml,alter_cpuxml分别如下:

<computernames>        <computername>                wuxuelei-pc        </computername></computernames>
<Counters>        <Counter alter = "10" operator = "gt" >/Processor(_Total)/% Processor Time</Counter>        <Counter alter = "10" operator = "gt" >/Processor(_Total)/% Privileged Time</Counter>        <Counter alter = "10" operator = "gt" >/SQLServer:SQL Statistics/Batch Requests/sec</Counter>        <Counter alter = "10" operator = "gt" >/SQLServer:SQL Statistics/SQL Compilations/sec</Counter>        <Counter alter = "10" operator = "gt" >/SQLServer:SQL Statistics/SQL Re-Compilations/sec</Counter>        <Counter alter = "10" operator=  "lt" >/System/Processor Queue Length</Counter>        <Counter alter = "10" operator=  "lt" >/System/Context Switches/sec</Counter></Counters>

其中 alter 就是阀值,如第一条,如果 阀值 > 性能计数器值,就会发出警告。

其实这种自定义配置的方式,实现了灵活多变的自动化监控标准:

1、比如可以检测磁盘空间大小

2、检测运行峰值状态

3、定时的根据历史运行值,更改生产系统中的阀值大小,也就是所谓的运行基线

警告实现方式

1、SQL Agent配置Job方式实现

2、计划任务

以上两种配置方式,可以灵活掌握,操作还是蛮简单的,如果不会,可自行google。当然,如果不想干预正常的生产系统,可以添加一个Server专门用来自动化运维检测来用,实现远程监控。

后续文章中会分析关于Power Shell的远程调用,并且能实现事故当前状态下,自动化截图....自动Send Email......为DBA现场取证第一手材料...方便诊断问题...

效果图如下

以上只提供实现方式,如需要内容更新,自己灵活更新。

脚本下载地址http://files.cnblogs.com/zhijianliutang/DBALter.zip


发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表