On Wed, Nov 2, 2016 at 9:10 PM, Dan Jakubiec <dan.jakubiec@xxxxxxxxx> wrote: > Hi John, > > How does one configure namespaces for file/dir layouts? I'm looking here, > but am not seeing any mentions of namespaces: > > http://docs.ceph.com/docs/jewel/cephfs/file-layouts/ The field is called "pool_namespace" (set it the same way as "pool"). I've written a patch to add it to the master documentation at [1] and also added a neater way to clear it which I noticed we didn't have when playing with it. Cheers, John 1. https://github.com/ceph/ceph/pull/11783 > Thanks, > > -- Dan > > On Oct 28, 2016, at 04:11, John Spray <jspray@xxxxxxxxxx> wrote: > > On Thu, Oct 27, 2016 at 9:43 PM, Reed Dier <reed.dier@xxxxxxxxxxx> wrote: > > Looking to add CephFS into our Ceph cluster (10.2.3), and trying to plan for > that addition. > > Currently only using RADOS on a single replicated, non-EC, pool, no RBD or > RGW, and segmenting logically in namespaces. > > No auth scoping at this time, but likely something we will be moving to in > the future as our Ceph cluster grows in size and use. > > The main question at hand is bringing CephFS, by way of the kernel driver, > into our cluster. We are trying to be more efficient with our PG > enumeration, and questioning whether there is efficiency or unwanted > complexity by way of creating a namespace in the existing pool, versus a > completely separate pool. > > On top of that, how does the cephfs-metadata pool/namespace equate into > that? Is this even feasible? > > Barring feasibility, how do others plan their pg_num for separate pools for > cephfs and the metadata pool, compared to a standard object pool? > > Hopefully someone has some experience with this and can comment. > > TL;DR - is there a way to specify cephfs_data and cephfs_metadata ‘pools’ as > a namespace, rather than entire pools? > $ ceph fs new <fs_name> <metadata pool> <data pool> > --metadata-namespace <ns1> --data-namespace <ns2> > <metadata pool> is the name of the pool where metadata is stored, > <ns1> the namespace within the aforementioned pool. > <data pool> and <ns2> analogous with the metadata side. > > > Currently, you can set a namespace on a file/dir layout which will > control where the file data goes, but the MDS will still put some > things outside of that namespace. > > The feature ticket for putting everything into namespaces is this one: > http://tracker.ceph.com/issues/15066 > > It's one of the simpler things in the backlog so if anyone wants a > project then it's a good one. > > Cheers, > John > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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