Date: Wed, 9 Sep 2015 11:59:54 +1000 From: Outback Dingo <outbackdingo@gmail.com> To: Mark Saad <nonesuch@longcount.org> Cc: Rick Macklem <rmacklem@uoguelph.ca>, "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>, Rakshith Venkatesh <vrock28@gmail.com>, Jordan Hubbard <jordanhubbard@icloud.com> Subject: Re: CEPH + FreeBSD Message-ID: <CAKYr3zyPxM0oKhgsNoFmkFxn6AFkekS2=ptV7Z6CicTzZvXCdw@mail.gmail.com> In-Reply-To: <F5F89A87-AD10-4CD3-BF56-854EEBB4C121@longcount.org> References: <CANw0z%2BVhYCPNWrjByXLf8yO9wA0sc05_8eVJsM-McjcGNU9KQg@mail.gmail.com> <CA%2BKW7xQrN60kH37hu2Keja60a0huVjAyP6=SQNSrqus2EUMUMA@mail.gmail.com> <CANw0z%2BXrwK=6y%2BLpoiewc_eLDBYB5UZ5XpU6-YP0-K2FKwSa5w@mail.gmail.com> <A19FDEB5-1DEF-4EBF-8E9E-A1AD4688F1AA@icloud.com> <100306673.40344407.1441279047901.JavaMail.zimbra@uoguelph.ca> <1564D4FA-9BE1-4E37-8E91-F14A009D6B62@icloud.com> <838814506.1858817.1441577912291.JavaMail.zimbra@uoguelph.ca> <F5F89A87-AD10-4CD3-BF56-854EEBB4C121@longcount.org>
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On Wed, Sep 9, 2015 at 11:31 AM, Mark Saad <nonesuch@longcount.org> wrote: > All > What about leofs. It's in ports has and s3 obj store and NFS support ou= t > of the box > > > http://www.freshports.org/databases/leofs/ > http://leo-project.net LeoFS supperts NFSv3 and does not have a lock manager.... > > > > --- > Mark Saad | nonesuch@longcount.org > > > On Sep 6, 2015, at 6:18 PM, Rick Macklem <rmacklem@uoguelph.ca> wrote: > > > > Jordan Hubbard wrote: > >> > >>> On Sep 3, 2015, at 4:17 AM, Rick Macklem <rmacklem@uoguelph.ca> wrote= : > >>> > >>> Slightly off topic but, btw, there is a port of GLusterFS and those > folks > >>> do seem > >>> interested in seeing it brought "up to speed". I am not sure how > mature it > >>> is at > >>> this point, but it has been known to build on amd64. (I don't have an > amd64 > >>> machine, > >>> so I haven't gotten around to building/testing it, but I do plan to > try and > >>> use > >>> it as a basis for a pNFS server, if I can figure out how to get the F= H > info > >>> out of it. > >>> I'm working on that;-) > >> > >> There are at least two distributed (multi-node) object stores for > FreeBSD > >> that I know of. > >> > >> One is glusterfs, for which I=E2=80=99m not even really clear on the s= tatus of > the > >> ports for. I don=E2=80=99t see any glusterfs port in the master branc= h of > >> https://github.com/freebsd/freebsd-ports (or > >> https://github.com/freebsd/freebsd-ports/tree/branches/2015Q3 for that > >> matter). > >> > >> Our FreeNAS ports tree (https://github.com/freenas/ports), in which we > have a > >> bit more latitude to add and curate our own ports, has both a > net/glusterfs > >> and sysutils/glusterfs, from separate sources (looks like we need to > clean > >> things up) - net/glusterfs lists craig001@lerwick.hopto.org as the > >> MAINTAINER and is at version 3.6.2. The sysutils/glusterfs port lists > >> bapt@FreeBSD.org as the MAINTAINER and is at version 20140811. > >> > >> I=E2=80=99m not really sure about the provenance since we were simply = evaluating > >> glusterfs for awhile and may have pulled in interim versions from thos= e > >> sources, but obviously it would be best to have an official maintainer > and > >> someone in the FreeBSD project actually curating a glusterfs port so > that > >> all users of FreeBSD can use it. It would also be fairly key to your > own > >> efforts, assuming you decide to pursue glusterfs as a foundation > technology > >> for pNFS. > >> > >> The other object store, which is pretty mature and is currently leadin= g > the > >> pack (of two :) ) for inclusion into FreeNAS is RiakCS from Basho. > There is > >> a port currently in databases/riak but it=E2=80=99s pretty out of date= at > version > >> 1.4.12 (the current version is 2.0.1, with 2.0 being a major upgrade o= f > >> RiakCS). > >> > >> We are very interested in investigating various ways of shimming RiakC= S > to > >> NFS, using RiakCS a back-end store. Is that something you=E2=80=99d = be > amenable to > >> discussing? I=E2=80=99d be happy to send you an amd64 architecture m= achine to > >> develop on. :) > > Hmm. From a quick look at their web page (I looked once before as well)= , > I don't > > think RiakCS has what I need to do pNFS in a reasonable (for me) amount > of effort. > > Two things that glusterFS has that I am hoping to use (and I don't thin= k > RiakCS has > > either of these) are: > > - A Fuse file system interface which allows the kernel nfsd to access > the store as > > a file system, so that it can provide the metadata services (NFS > without the reads/writes). > > - A userland NFSv3 server in each node which will allow the node to act > as a data server. > > > > If I am wrong and RiakCS does support a VFS file system interface (via > Fuse or ???), then > > please correct me. With that, it might be a reasonable alternative. > > I'll admit I've spent a little time looking at the glusterFS sources an= d > haven't yet > > solved the problem of how to generate the file handles I need, but that > sounds trivial > > compared with an entire Fuse and/or VFS file system interface, I think? > > > > In general, using a cloud object store to implement a pNFS server is a > *mis*use of > > the technology, imho. I think it may be possible with glusterFS, since > that technology > > seems to be based on a cluster file system, which is what a pNFS server > can also use. > > > > I think there would be a lot of work involved in mapping a POSIX file > system onto the > > Riak database and then exporting that via NFS, etc. It might also be > more practical to > > do this via a userland NFS service than the kernel based one currently > in FreeBSD. > > (glusterFS is starting to use the NFS-ganesha server, but I believe it > is pretty Linux specific, > > so I doubt it would be useful for Riak running on FreeBSD?) > > > > rick > > > >> - Jordan > > _______________________________________________ > > freebsd-fs@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-fs@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >
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