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 of 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: > > 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 FH 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’m not even really clear on the status of the >> ports for. I don’t see any glusterfs port in the master branch 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’m not really sure about the provenance since we were simply evaluating >> glusterfs for awhile and may have pulled in interim versions from those >> 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 leading the >> pack (of two :) ) for inclusion into FreeNAS is RiakCS from Basho. There is >> a port currently in databases/riak but it’s 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). >> >> We are very interested in investigating various ways of shimming RiakCS to >> NFS, using RiakCS a back-end store. Is that something you’d be amenable to >> discussing? I’d be happy to send you an amd64 architecture machine 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 think 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 and 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"
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