排除KQL SLA圖表中的數據

Question

我們正在顯示URL，VPN和VM的SLA圖表，如果有任何計划的定期維護，我們希望將KQL SLA圖表中的時間排除在已知停機時間之外。

在這段時間中，我們將通過下面的列傳遞給Loganalytics定制表，從而通過Powershell禁用警報。

     "resourcename": "$resourcename",
     "Alertstate": "Enabled",
     "Scheduledmaintenance" : "stop",
     "Environment" : "UAT",
     "timestamp": "$TimeStampField",

    Now we want to use join condition SLA charts queries  with custom table data and exclude the time range in SLA charts during scheduled maintenance.

    Adding query as per request
    ---------------------------

    url_json_CL
    | where Uri_s contains "xxxx"
    | extend Availablity = iff(StatusCode_d ==200,1.000,0.000)
    | extend urlhit = 1.000
    | summarize PassCount = sum(Availablity), TestCount = sum(urlhit) by Uri_s ,ClientName_s
    | extend AVLPERCENTAGE = ((PassCount / TestCount ) * 100)
    | join kind=leftouter 
(  scheduledmaintenance2_CL
     | where ResourceName_s == "VMname" 
     | where ScheduledMaintenance_s == "start" 
     | extend starttime = timestamp_t)
     on ClientName_s
    | join kind= leftouter
     (scheduledmaintenance2_CL
     | where ResourceName_s == "VMname" 
     | where ScheduledMaintenance_s == "stop" 
     | extend stoptime = timestamp_t )
     on ClientName_s
     | extend excludedtime=stoptime - starttime  
     | project ClientName_s, ResourceName_s, excludedtime, AVLPERCENTAGE , Uri_s 
     | top 3 by  ClientName_s  desc

Answer 1

您可以在Azure Monitor中執行跨資源日志查詢

1. 使用Application Insights資源管理器，我們還可以查詢Log Analytics工作區自定義表。

workspace("/subscriptions/xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx/resourcegroups/rgname/providers/Microsoft.OperationalInsights/workspaces/workspacename").Event | count

2. 使用Log Analytics日志瀏覽器可以查詢Application Insights可用性結果

app("applicationinsightsinstancename").availabilityResults

您可以使用上述任何選項來查詢所需的表並聯接這些表。 請參考本文檔的連接。

其他文檔參考 。

希望這可以幫助。