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Nodefly

一個線上監控雲端伺服器服務的網站,透過簡單的指令安裝Agent後即可監控主機上的服務,目前監控看起來滿多樣化的∼
下面是網站上的介紹:

NodeFly - Providing real-time monitoring across cloud instances

  • Fast Set up - One line install so you can be monitoring in literally seconds
  • Unified Dashboard - Visualize all your data in one location
  • Supporting multiple clouds + physical hardware
  • Monitor what is important to ensure applications stay up and running
  • Gain real-time insight into capacity utilization and instantly see how changing usage affects performance
  • Ensure instances aren't over or underutilized
  • Dig deep into you services layer to optimize your app performance

Simplicity is the key. NodeFly has developed "active discovery" which will proactively find and setup monitors for all of your available services.

We allow our users to gain detailed, real-time performance monitoring of cloud and application services so they can see everything that is happening, as it happens. From understanding system usage at every moment in time to uncovering and resolving issues within the application as they arise.

NodeFly makes adding servers from any of our 8 supported clouds takes seconds. All you do is add your API details and we pull all your details for you. Adding physical servers is also a snap; just install the NodeFly Agent.


這個網誌中的熱門文章

Oracle LISTAGG

同事介紹的一個Oracle的好用查詢:LISTAGG
SELECT A.GROUP_ID,A.KEY, LISTAGG(A.VALUE,'; ')WITHINGROUP(ORDERBYA.VALUE)as GG  fromSYS_PROPERTIESaGROUP byA.GROUP_ID,A.KEY
LISTAGG可以將group後的結果會總顯示於一個欄位 上述SQL原本A.VALUE會是一個row一個row的排列 使用LISTAGG之後,可以將A.VALUE顯示在同一個row中 並且可以指定間隔符號(在此設定為';') 針對某一些報表查詢非常有用唷 :D

使用GCP Cloud Builder建置CI/CD Flow

服務的建置通常是持續性的作業,而部署則一般是專案初期建置一次,未來可以沿用該部署設定... 這樣的流程走向自動化,在Container的環境又更是重要... 本篇介紹一下,在Google雲端,我們可以搭配Source Repository與Build Trigger等服務來完成服務的自動建置與部屬,讓封裝Container與部署到Container Engine的動作可以一氣呵成...
首先幾單瞭解一下一個Container Engine服務的建置與部屬過程...
使先,建立Container Engine Cluster,透過GCP Winzard可以很快速地開立您的GKE Cluster…

假設您的cluster是叫做demo-cluster,則可以透過下面的指令來跟GKE建立連線
$ gcloud container clusters get-credentials demo-cluster --zone asia-east1-a
這串指令不用記ㄛ~可以在Cluster的頁面找到他...

點選複製,即可貼到您的Terminal執行...

跟GKE建立鏈結後,接下來可以部署您的城市,這邊我們以我的一個範例程式Demoweb (https://github.com/peihsinsu/demoweb) 為例,

這個專案中,包含幾個重要結構:
app/ : 放置您的程式,在Dockerfile中會將該資料匣複製到Docker Image中 k8s/ : 放置k8s的deployment與service描述檔 Dockerfile : 封裝docker的描述檔,會以node.js的image為基礎來建置執行環境 cloudbuild.yaml : Google Cloud Build Trigger的步驟描述檔

Flashback Query

感謝我的好友提供的: 在Oracle好用的指令...
Flashback Query: 讓異動過的資料表回到歷史時間點 Step 1. è
show parameter undo_retention  PS: 這個參數顯示系統上設定歷史保留時間(ex: 900 = 900秒) Step 2. è CREATETABLE XXXXX_0815 ASSELECT *  FROM XXXXXASOFTIMESTAMPTO_TIMESTAMP('2011-08-15 12:00:00','YYYY-MM-DD HH24:MI:SS');
PS: 透過as of timestamp方式取出該時間點的表格資料