peketaminのブックマーク - はてなブックマーク

Prevent duplicate cron jobs running

I have scheduled a cron job to run every minute but sometimes the script takes more than a minute to finish and I don't want the jobs to start "stacking up" over each other. I guess this is a concurrency probl em - i.e. the script execution needs to be mutually exclusive. To solve the probl em I made the script look for the existence of a particular file ("lockfile.txt") and exit if it exists or tou

peketamin 2020/05/14

“flock” 多重起動防止には piofコマンドを使う記事もあったけど、flockが使えるならこっちの方が使いやすい

shellscript

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Caddy "listen tcp :443: bind: permission denied"

peketamin 2020/05/12

“sudo setcap CAP_NET_BIND_SERVICE=+eip /path/to/caddy”

サーバー

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Streaming PostgreSQL pg_dump to S3

Is it possible or advisa ble to stream/pipe pg_dump output to S3? We are dumping large datasets to our instance and the database size is big. So trying to optimize for local disk space (avoid temp space for dump) and create the backup straight on S3. We have a PostgreSQL v9.6.3 on Ubuntu 16.04.

peketamin 2019/03/23

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How to stop uwsgi when no pidfile in config?

I've just installed uwsgi by pip install uwsgi in a virtual env. In "ini" file I used: socket = 127.0.0.1:3000 # no pidfile option And run uwsgi --ini config.ini But how to stop this instance of uwsgi? uwsgi --stop ... wants a pid file. I can't use an address: open("127.0.0.1:3000"): No such file or directory [core/io.c line 505] And if killing - uwsgi just respawns itself.