Azure Monitor監(jiān)控系統(tǒng)的內(nèi)存使用率方法

查詢收集到的數(shù)據(jù)

我們可以使用如下查詢語(yǔ)句，查詢內(nèi)存剩余內(nèi)存小于1024MB的服務(wù)器：

let setMBValue = 1024;
let startDate = ago(12h);
// enter how many days/hours to look back on
Perf
| where TimeGenerated > startDate
| where ObjectName == "Memory" and CounterName == "Available MBytes Memory" and Computer in ((Heartbeat
| distinct Computer))
| extend FreeMemory = CounterValue
| summarize FreeMemoryMB = min(FreeMemory) by Computer
| where FreeMemoryMB < setMBValue
| summarize max(FreeMemoryMB) by Computer
| join
(
Perf
| where TimeGenerated > startDate
| where ObjectName == "Memory" and CounterName == "Available MBytes Memory" and Computer in ((Heartbeat
| distinct Computer))
| extend FreeMemory = CounterValue
)
on Computer
| make-series Free_Memory_MB = min(FreeMemory) on TimeGenerated from ago(8h) to now() step 2h by Computer
| render timechart

創(chuàng)建Alert
如果我們想要設(shè)置郵件，短信等報(bào)警規(guī)則，可以通過(guò)“+ New alert rule”來(lái)創(chuàng)建：

創(chuàng)建完成Alert以后，當(dāng)系統(tǒng)的可用內(nèi)存低于1024MB時(shí)，我們就會(huì)收到警報(bào)：

將性能圖表固定到儀表板
統(tǒng)一我們也可以通過(guò)點(diǎn)擊查詢窗口右上方的“固定”按鈕，然后選擇我們要將圖標(biāo)展示在那個(gè)Dashboard，來(lái)將查詢結(jié)果展示到Azure Dashboard：