February 2013
Intermediate to advanced
380 pages
7h 45m
Japanese
Content preview from Nodeクックブック
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342
10 章 本番環境に展開するために
関連するレシピ
●
「レシピ
10.1
アプリケーションを
80
番ポートで待機させる」
●
「レシピ
10.3
Git
を使った継続的デプロイ」
●
「レシピ
10.4
PaaS
プロバイダでホスティングする」
ミニレシピ
10.2.1
Upstart
の
respawn
制限違反を検出する
Upstart
設定ファイルの
respawn limit
で設定した再起動回数を超えた場合、アプリケーション
にはすぐに解決すべき何か重大な問題が起こっているはずです。管理者はすぐにこれを察知しなけ
ればなりません。
Upstart
でこれを実現するには、
crashingserver
デーモンを監視するための別の
Upstart
設定ファイルを記述します。
respawn limit
の設定を超えた場合、管理者にメールを送信
します。
/etc/init/sitedownmon.conf
task
start on stopped crashingserver PROCESS=respawn
script
if [ "$JOB" != '' ]
then echo "Server "$JOB" has crashed on $(date)" | mail -s $JOB"
サイトがダウンしています
"
dave@nodecookbook.com
fi
end script
このファイルを保存し、アプリケーションを起動します。
% start crashingserver
% start sitedownmon
sitedownmon ...
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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.