SQL Server 性能基线和监控

就讲讲监控那些值,基线抓的是那些值。如何做告警

环境:windows 2008r2,sql server 2008r2 sp1

性能基线:

  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

以上是性能基线监控的信息,当然性能警告也是监控这些信息,其中的阀值是根据基线抓取后体现。

关于性能警告我是使用powershell 写了一个脚本,运行在SQL Agent 中。如果出现警告,就通过dbmail 发送邮件

关于powershell 脚本和一些配置信息看如下:

SQL Server 性能基线和监控
$server = "(local)"
$uid = "sa"
$db="master"
$pwd="pwd"
$mailprfname = "sina"
$recipients = "xxxxx@qq.com"
$subject = "Proformance Alter"
$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
    }
}
SQL Server 性能基线和监控

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

<computernames>
        <computername>
                fanr-pc
        </computername>
</computernames>
SQL Server 性能基线和监控
<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>
SQL Server 性能基线和监控

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。

 


    本文转自 Fanr_Zh 博客园博客,原文链接:http://www.cnblogs.com/Amaranthus/archive/2012/05/18/2507189.html,如需转载请自行联系原作者





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