1.权限管理
wget http://influxdb.s3.amazonaws.com/influxdb-0.9.4.2-1.x86_64.rpm
yum localinstall influxdb-0.9.4.2-1.x86_64.rpm
man /etc/init.d/influxdb
curl -G 'http://localhost:8086/query?pretty=true&db=mydb' --data-urlencode 'q=SELECT * FROM "cpu"';