influxdb版本升级

服务重启：
systemctl stop influxdb
systemctl start influxdb
下载：
wget et https://dl.influxdata.com/influxdb/releases/influxdb-1.7.7.x86_64.rpm
备份：
influxd backup -host st 127.0.0.1:8088 -po -portable -database iot_moc_prod /opt/data/backup
卸载：
[root@localhost sha shared]# rpm -q influxdb
influxdb-0.8.7-1.x86_64?
[root@localhost sha shared]# rpm -e influxdb
[root@localhost sha shared]# rpm -q influxdb
package influxdb is not installed