I'm just asking because I don't know if its possible but would it be worth considering backups at the vm level? You back up the leader vm via your virtualization platform to backup the entire vm including the data on the shared FS and then just backup the follower vm's excluding the shared FS. If you need to recover you can deploy from backup either a blank reader, the full follower or just the FS.
I'm assuming A new reader node can sync/read itself into parity with the other reader nodes in the configuration You have a virtualization aware backup system that can handle quiescing -----Original Message----- From: Matteo Bertazzo [mailto:[email protected]] Sent: 03 October 2012 03:39 To: Support and info exchange list for Fedora users. Subject: [fcrepo-user] journaling and backup Hi all, we're running fedora in "leader/follower" configuration so the ingest phase is going on the leader node and followers are in read only mode. Fedora datastores are on local FSs and all the VMs access a shared FS for the journals. We're using a load balancer in order to distribute API-A calls to the nodes. Given this configuration i would like to perform scheduled hot backups of a follower without stopping fedora or changing the LB configuration. We think we have to suspend the journaling on a follower node in order to perform a safe backup on it. What do you think? We could not find a way to "suspend" the RMI journaling without a fedora restart. Can you confirm this? Given this configuration and these constraints, IF we find a way to "suspend" the journaling (ie using the FS transport), do you think it would be safe to perform a hot backup of a follower node even if it is running (=readonly access)? We're wondering about open files or similar problems. Thank you in advance, all the best, Matteo ------------------------------------------------------------------------ ------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ Fedora-commons-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fedora-commons-users ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ Fedora-commons-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fedora-commons-users
