Hi, I am installing ceilometer queens version. While installing gnocchi-api, gnocchi-metricd and python-gnocchiclient packages I encountered the error Registering service and endpoints for gnocchi with type metric at http://192.168.133.81:8041 Failed to discover available identity versions when contacting http://127.0.0.1:35357/v3/. Attempting to parse version from URL. Unable to establish connection to http://127.0.0.1:35357/v3/auth/tokens: HTTPConnectionPool(host='127.0.0.1', port=35357): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fa1c8b0cb90>: Failed to establish a new connection: [Errno 111] Connection refused',)) dpkg: error processing package gnocchi-api (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: gnocchi-api E: Sub-process /usr/bin/dpkg returned an error code (1) I checked the postinst scripts of the packages and found that port 35357 has been configured instead of 5000. Therefore, I fetched the deb packages separately and edited the postinst files of the packages, repackaged it and installed the packages with dpkg -i <deb-file>. Now the logs are (Reading database ... 154597 files and directories currently installed.) Preparing to unpack .../python3-gnocchi_4.2.5-0ubuntu1~cloud0_all.deb ... Unpacking python3-gnocchi (4.2.5-0ubuntu1~cloud0) over (4.2.5-0ubuntu1~cloud0) ... Setting up python3-gnocchi (4.2.5-0ubuntu1~cloud0) ... 2019-07-15 16:48:48,434 - INFO - executing "dpkg -i /var/cache/apt/archives/packages/fixed-gnocchi-common.deb" ... (Reading database ... 154597 files and directories currently installed.) Preparing to unpack .../fixed-gnocchi-common.deb ... Unpacking gnocchi-common (4.2.5-0ubuntu1~cloud0) over (4.2.5-0ubuntu1~cloud0) ... Setting up gnocchi-common (4.2.5-0ubuntu1~cloud0) ... 2019-07-15 16:48:49,324 - INFO - executing "dpkg -i /var/cache/apt/archives/packages/fixed-gnocchi-api.deb" ... Selecting previously unselected package gnocchi-api. (Reading database ... 154597 files and directories currently installed.) Preparing to unpack .../packages/fixed-gnocchi-api.deb ... Unpacking gnocchi-api (4.2.5-0ubuntu1~cloud0) ... Setting up gnocchi-api (4.2.5-0ubuntu1~cloud0) ... Registering service and endpoints for gnocchi with type metric at http://192.168.133.81:8041 Service already registered: skipping service endpoint creation. apache2_invoke: Enable site gnocchi-api.conf 2019-07-15 16:49:01,438 - INFO - executing "dpkg -i /var/cache/apt/archives/packages/gnocchi-metricd_4.2.5-0ubuntu1~cloud0_all.deb" ... Selecting previously unselected package gnocchi-metricd. (Reading database ... 154601 files and directories currently installed.) Preparing to unpack .../gnocchi-metricd_4.2.5-0ubuntu1~cloud0_all.deb ... Unpacking gnocchi-metricd (4.2.5-0ubuntu1~cloud0) ... Setting up gnocchi-metricd (4.2.5-0ubuntu1~cloud0) ... Processing triggers for systemd (229-4ubuntu21.22) ... Processing triggers for ureadahead (0.100.0-19.1) ... 2019-07-15 16:49:02,416 - INFO - executing "dpkg -i /var/cache/apt/archives/packages/python-gnocchiclient_7.0.1-0ubuntu1~cloud0_all.deb" ... Selecting previously unselected package python-gnocchiclient. (Reading database ... 154606 files and directories currently installed.) Preparing to unpack .../python-gnocchiclient_7.0.1-0ubuntu1~cloud0_all.deb ... Unpacking python-gnocchiclient (7.0.1-0ubuntu1~cloud0) ... Setting up python-gnocchiclient (7.0.1-0ubuntu1~cloud0) ... update-alternatives: using /usr/bin/python2-gnocchi to provide /usr/bin/gnocchi (gnocchi) in auto mode The service gnocchi-metricd gets created but there are no signs of gnocchi-api in /etc/init.d/. Kindly, tell me how to proceed. Thank you. Regards, Nehal