May 2019
Intermediate to advanced
464 pages
9h 22m
Japanese
Content preview from Node.jsデザインパターン 第2版
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10.2
クローニングと負荷分散
349
必要最小限の設定です。
http {
# ...
upstream nodejs_design_patterns_app {
server 127.0.0.1:8081;
server 127.0.0.1:8082;
server 127.0.0.1:8083;
server 127.0.0.1:8084;
}
# ...
server {
listen 80;
location / {
proxy_pass http://nodejs_design_patterns_app;
}
}
# ...
}
upstream nodejs_design_patterns_app
のセクションでは、ネットワークリクエストを処
理するのに使うバックエンドサーバのリストを定義し、
server
のセクションではディレクティブ
proxy_pass
を指定しています。このディレクティブは、実質的にすべてのリクエストを上（
nodejs_
design_patterns_app
）で定義したサーバグループへ転送するよう
Nginx
に命令するものです。こ
れでおしまいです。あとは次のコマンドで
Nginx
の設定をリロードします。
$ nginx -s reload
これでシステムが起動され稼働しているはずです。リクエストを受け付け、
Node
アプリケーション
の
4
つのインスタンス間でトラフィックを分散させる準備ができました。ブラウザでアドレス
http://
localhost
にアクセスして
Nginx ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.