https://wiki.infn.it/ 2026-05-13T23:31:16+00:00 https://wiki.infn.it/ https://wiki.infn.it/_media/wiki/logo.png text/html 2014-09-26T08:05:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/backup?rev=1411718736&do=diff Backup MySQL DB Backup Il cluster MySQL e' composto da tre macchine nelle quali e' installato Percona XtraDB Cluster. Per eseguire il backup basta utilizzare uno qualsiasi dei tre server, essendo tutti in configurazione attiva. Nel nostro cluster e' stato utilizzato mysql-cluster-01 per eseguire tutte le attivita' di backup. text/html 2015-08-04T15:00:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/live_migration_of_virtual_machines?rev=1438700448&do=diff Live Migration howto Live migration of a virtual machine allow a VM executed by a certain compute node (which is going to fail or to be shutoff for maintenance), to be executed by another compute node with virtually zero downtime experienced by the virtual machine's users. text/html 2017-05-22T15:09:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/manual_delete_cinder_volumes?rev=1495465749&do=diff Manual delete Cinder Volumes Author: * Alvise Dorigo (INFN Padova) There are cases, not easily reproducible, in which cinder delete or even cinder force-delete do not work, and the volume stays in its current status (which is, in our experience, "deleting" or "detaching" text/html 2016-03-07T10:57:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/monitoring?rev=1457348251&do=diff Monitoring Ganglia Ganglia Monitoring Page Nagios Nagios Monitoring Page Active sensors * Current load: Check the 1m, 5m, 15m loads on the monitored host. Report an error or warning if one of these values exceeds a threshold (thresholds are defined in the Nagios .cfg files) * Dell Server XYZ text/html 2014-04-15T17:39:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/preproduction_cloud?rev=1397583596&do=diff PreProduction Cloud Layout Installation Instructions for Controller Node Installation Instructions for Compute Node text/html 2014-10-30T09:08:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud?rev=1414660137&do=diff Production Cloud text/html 2015-08-18T09:18:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/save_and_remove_cinder_volume_stuck?rev=1439889500&do=diff Save and Remove Cinder Volume Stuck * Find using openstack command the volume stuck and the file associated to it: cinder list --all-tenants * Determine from the project or the user the volume. We suppose the file is: /brickOpenstack/cinder-prod/mpathb/volume-2a367882-9bd7-4ee1-a99e-fa491bcaf0af