Q：ServerStatus 中文版「流量」为 0
A：首先要安装 vnstat；apt install vnstat ;另外因为客户端 client-psutil.py 里配置的网卡不对，默认是eth0，但很多VM都不是以这个网卡名称。
Q：如何升级 Observium
A：Run the following commands (as root):
cd /opt mv observium observium_old wget -Oobservium-community-latest.tar.gz http://www.observium.org/observium-community-latest.tar.gz tar zxvf observium-community-latest.tar.gz mv /opt/observium_old/rrd observium/ mv /opt/observium_old/logs observium/ mv /opt/observium_old/config.php observium/
Update DB schema:
/opt/observium/discovery.php -u
If it has been a very long time since you’ve updated (12 months or more), you may want to force an immediate rediscovery of all devices to make sure things are up to date :
/opt/observium/discovery.php -h all
Re-enable observium cronjobs optional
You may now delete your observium_old directory if everything has updated correctly: