h2o と server_starter で graceful restart with Docker - blog.nomadscafe.jp
h2o はserver_starter経由のgraceful restartをサポートしているので試してみた。ついでにdockerで動かしてみた。 h2o/h2o 実際にwrkでベンチマークしながらコンテナにHUPシグナルを送り、graceful restartを行ってみたのが次の動画 左上がh2oをdocker経由で起動しているウィンドウ、HUPを受けてh2oのプロセスを入れ替えている様子がわかります。。左下はwrkの実行、右側はコンテナにHUPを送ってます。 HUPシグナルはdocker killを使って送ります。 $ docker kill --signal="HUP" $(docker ps |grep kazeburo/h2o|awk '{print $1}') wrkの結果はこんな感じ。エラーは出ていません vagrant@vagrant-ubuntu-trusty-64:~/
Graceful restart in Golang - Gregory Trubetskoy
Update (Apr 2015): Florian von Bock has turned what is described in this article into a nice Go package called endless. If you have a Golang HTTP service, chances are, you will need to restart it on occasion to upgrade the binary or change some configuration. And if you (like me) have been taking graceful restart for granted because the webserver took care of it, you may find this recipe very hand
Zen 3.1 - Product. Data. Code
Product. Data. Code Archive Sequence Comments/Feedbacks at Hacker News, Reddit The past few evenings I’ve been working on a Go program that listens on a TCP socket, accepts new connections, processes some data and then return some data to the client. This is actually fairly simple in Go. The top of the net package has some fairly simple examples of how to do that. Another example can be found abou
Graceful stopping in Go — Richard Crowley’s blog
It’s rude to deploy early and often if deploys interrupt user requests so we build our Go services at Betable to stop gracefully without interrupting anyone. The idea is to stop listening, presumably so a new process can take over, and let all open connections respond to any in-progress requests before finally stopping service. Incidentally, we use goagain to restart without even stopping listen
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graceful/graceful.go at master · tylerstillwater/graceful
