To whom it may concern, I got the error message when I restart gnocchi-api as the official installation guide. Here is the error message I got root at c3macserver2:~# service gnocchi-api start Failed to start gnocchi-api.service: Unit gnocchi-api.service not found. root at c3macserver2:~# whereis gnocchi-api gnocchi-api: /usr/bin/gnocchi-api gnocchi-api is already the newest version (4.3.2-0ubuntu2~cloud0). Someone said the new version doesn't include the gnocchi-api, so I am trying to install the previous version. https://stackoverflow.com/questions/47520779/service-gnocchi-api-not-found Need the help to install the previous version of gnocchi-api. My openstack version : stein Ubuntu 18.0.4 Thanks. Kind regards, Walsh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20201002/84fb6a97/attachment.html>