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Dockerでsar実行する際につまづいたこと

結論、cronをinstallしたら解決した

dockerにsarコマンドをinstallして、計測間隔を設定、"vi /etc/default/sysstat"でfalseをtrueに変更しても動かなかったが、cronがそもそもinstallされていなかったことが原因でした。

設定フロー

apt-get のupdate

apt-get update

cronのinstall

apt-get -y install cron

sysstat(sar)のinstall

apt-get install sysstat -y

計測を許可

vim /etc/default/sysstat

ENABLED="false"
  ↓
ENABLED="true"

10分間隔を1分間隔にした。

vim /etc/cron.d/sysstat

サービス起動

service cron start
/etc/init.d/sysstat start

サービス起動確認

service cron status
service sysstat status

計測されていること確認

image.png

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