Date: Tue, 8 Sep 2015 22:25:51 -0400 From: Mark Saad <nonesuch@longcount.org> To: Outback Dingo <outbackdingo@gmail.com> 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: <8551C101-0E4B-4619-BF52-1B87BC6565D8@longcount.org> In-Reply-To: <CAKYr3zyPxM0oKhgsNoFmkFxn6AFkekS2=ptV7Z6CicTzZvXCdw@mail.gmail.com> 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> <CAKYr3zyPxM0oKhgsNoFmkFxn6AFkekS2=ptV7Z6CicTzZvXCdw@mail.gmail.com>
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> On Sep 8, 2015, at 9:59 PM, Outback Dingo <outbackdingo@gmail.com> wrote: >=20 >=20 >=20 >> 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 >>=20 >>=20 >> http://www.freshports.org/databases/leofs/ >> http://leo-project.net >=20 > LeoFS supperts NFSv3 and does not have a lock manager....=20 >=20 Well, nlm it's not a hard requirement for most NFS things . NFS is there for= direct access of the data . So in its current form it's not a pnfs setup , b= ut there is no reason it could not be extended . =20 Well it could be worse , manta, joyent's compute and storage platform has a= NFS server written in node.js . Yes nfs in JavaScript , what else would you= expect from them . :) --- Mark Saad | nonesuch@longcount.org > =20 >>=20 >>=20 >>=20 >> --- >> Mark Saad | nonesuch@longcount.org >>=20 >> > 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 f= olks >> >>> do seem >> >>> interested in seeing it brought "up to speed". I am not sure how matu= re 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 t= ry and >> >>> use >> >>> it as a basis for a pNFS server, if I can figure out how to get the FH= info >> >>> out of it. >> >>> I'm working on that;-) >> >> >> >> There are at least two distributed (multi-node) object stores for Free= BSD >> >> 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/glus= terfs >> >> and sysutils/glusterfs, from separate sources (looks like we need to c= lean >> >> 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 e= valuating >> >> 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 t= hat >> >> all users of FreeBSD can use it. It would also be fairly key to your o= wn >> >> efforts, assuming you decide to pursue glusterfs as a foundation techn= ology >> >> 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. Th= ere 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 b= e amenable to >> >> discussing? I=E2=80=99d be happy to send you an amd64 architecture m= achine to >> >> develop on. :) >> > Hmm. =46rom a quick look at their web page (I looked once before as wel= l), 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 t= he store as >> > a file system, so that it can provide the metadata services (NFS witho= ut 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 t= hat 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 s= ystem onto the >> > Riak database and then exporting that via NFS, etc. It might also be mo= re practical to >> > do this via a userland NFS service than the kernel based one currently i= n FreeBSD. >> > (glusterFS is starting to use the NFS-ganesha server, but I believe it i= s 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" >=20
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