On Sun, Sep 15, 2013 at 04:18:05PM +0200, Daniel Swarbrick wrote:
> On Sun, Sep 15, 2013 at 1:03 PM, Bastian Blank <wa...@debian.org> wrote:
> > There is a python script ceph-rest-api. Where is this used? Why does
> > it warrant a dependency on 20 other packages?
> This is the as yet sparsely documented admin REST WSGI app (which can also
> run as a standalone server), which was a new feature in the 0.67 "dumpling"
> release. This should not be confused with the RADOSGW REST stuff.
Thats why I asked it this sparsely documented and not enabled by default
piece of software warrants the hard inclusion of a lot of dependencies.
> > Yeah. But why does it need a different package? What does this extra
> > package bring for the user?
> Ceph MDS are not needed on every OSD, and are in fact only needed if using
> CephFS. If you're only using RBD pools and RADOSGW, then a MDS is
> completely unnecessary. Similarly, a mon is not needed on every Ceph node
> either.
Neither mon, osd nor mds should run on the same system I would assume,
at least in large installations. So my question is just _why_ mds needs
this extra package, while mon/osd can live in the same.
Bastian
--
Vulcans never bluff.
-- Spock, "The Doomsday Machine", stardate 4202.1
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