On 03/02, Pieter Baele wrote: > Red Hat tells me the Cinder BlockDeviceDriver is going to be deprecated > upstream. It isn't supported in RHOSP in any case. > Is this true?
Yes, that is correct, it's in the release notes: https://github.com/openstack/cinder/blob/master/releasenotes/notes/deprecate-block-device-driver-d30232547a31fe1e.yaml > > Bakground information: > BDD is one of the things I would have used for important HDFS DataNodes in > a private cloud. > Red Hat proposes Ceph, but running a replicated HDFS on top of Ceph RBD > which also replicated.....? > > So my only option left is bare-metal Hadoop DataNodes (?) > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: [email protected]?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev The first thing that would come to mind in this case would be to remove the replication from one of the 2 filesystems, since both of them allow this: - You can create the ceph pool for the volumes with a replication size of 1 - Set your HDFS file replication to 1 I haven't done tests or analyzed your specific case, so I wouldn't be able to say which one is the most appropriate for your case. You could always go with LVM nodes, although I'm not sure that's such a great idea; and you probably already know that Red Hat doesn't support it for production environments, as it's only approved for PoC deployments. Cheers, Gorka. __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
