Date: Tue, 8 Sep 2015 21:31:34 -0400 From: Mark Saad <nonesuch@longcount.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: Jordan Hubbard <jordanhubbard@icloud.com>, "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>, Rakshith Venkatesh <vrock28@gmail.com> Subject: Re: CEPH + FreeBSD Message-ID: <F5F89A87-AD10-4CD3-BF56-854EEBB4C121@longcount.org> In-Reply-To: <838814506.1858817.1441577912291.JavaMail.zimbra@uoguelph.ca> 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>
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All What about leofs. It's in ports has and s3 obj store and NFS support out o= f the box http://www.freshports.org/databases/leofs/ http://leo-project.net --- Mark Saad | nonesuch@longcount.org > On Sep 6, 2015, at 6:18 PM, Rick Macklem <rmacklem@uoguelph.ca> wrote: >=20 > Jordan Hubbard wrote: >>=20 >>> On Sep 3, 2015, at 4:17 AM, Rick Macklem <rmacklem@uoguelph.ca> wrote: >>>=20 >>> Slightly off topic but, btw, there is a port of GLusterFS and those folk= s >>> do seem >>> interested in seeing it brought "up to speed". I am not sure how mature i= t >>> is at >>> this point, but it has been known to build on amd64. (I don't have an am= d64 >>> machine, >>> so I haven't gotten around to building/testing it, but I do plan to try a= nd >>> use >>> it as a basis for a pNFS server, if I can figure out how to get the FH i= nfo >>> out of it. >>> I'm working on that;-) >>=20 >> There are at least two distributed (multi-node) object stores for FreeBSD= >> that I know of. >>=20 >> One is glusterfs, for which I=E2=80=99m not even really clear on the stat= us of the >> ports for. I don=E2=80=99t see any glusterfs port in the master branch o= f >> https://github.com/freebsd/freebsd-ports (or >> https://github.com/freebsd/freebsd-ports/tree/branches/2015Q3 for that >> matter). >>=20 >> Our FreeNAS ports tree (https://github.com/freenas/ports), in which we ha= ve a >> bit more latitude to add and curate our own ports, has both a net/gluster= fs >> and sysutils/glusterfs, from separate sources (looks like we need to clea= n >> 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. >>=20 >> I=E2=80=99m not really sure about the provenance since we were simply eva= luating >> glusterfs for awhile and may have pulled in interim versions from those >> sources, but obviously it would be best to have an official maintainer an= d >> 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 technolo= gy >> for pNFS. >>=20 >> The other object store, which is pretty mature and is currently leading t= he >> 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 of >> RiakCS). >>=20 >> We are very interested in investigating various ways of shimming RiakCS t= o >> NFS, using RiakCS a back-end store. Is that something you=E2=80=99d be a= menable to >> discussing? I=E2=80=99d be happy to send you an amd64 architecture mach= ine to >> develop on. :) > Hmm. =46rom 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 think R= iakCS has > either of these) are: > - A Fuse file system interface which allows the kernel nfsd to access the s= tore as > a file system, so that it can provide the metadata services (NFS without t= he reads/writes). > - A userland NFSv3 server in each node which will allow the node to act as= a data server. >=20 > If I am wrong and RiakCS does support a VFS file system interface (via Fus= e 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 and h= aven't yet > solved the problem of how to generate the file handles I need, but that so= unds trivial > compared with an entire Fuse and/or VFS file system interface, I think? >=20 > In general, using a cloud object store to implement a pNFS server is a *mi= s*use of > the technology, imho. I think it may be possible with glusterFS, since tha= t technology > seems to be based on a cluster file system, which is what a pNFS server ca= n also use. >=20 > I think there would be a lot of work involved in mapping a POSIX file syst= em onto the > Riak database and then exporting that via NFS, etc. It might also be more p= ractical 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 p= retty Linux specific, > so I doubt it would be useful for Riak running on FreeBSD?) >=20 > rick >=20 >> - 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"
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