Rails でメモリが右肩上がりに増えて最終的に落ちるのでなんとかしてきた - Qiita

before_fork do require 'puma_worker_killer' PumaWorkerKiller.config do |config| config.ram = 1024 # total RAM available config.frequency = 5 # how often to check config.percent_usage = 0.98 # percent of RAM to use before killing config.rolling_restart_frequency = 12 * 3600 # 12 hours in seconds end PumaWorkerKiller.start end puma_worker_killer の設定値の解説 config.ram = 1024: アプリケーションが利用可能なRAMの総量 config