From: Roman V Shaposhnik <rvs@sun.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] ceph
Date: Tue, 4 Aug 2009 17:27:06 -0700 [thread overview]
Message-ID: <1249432026.479.16637.camel@work.SFBay.Sun.COM> (raw)
In-Reply-To: <Pine.BSI.4.64.0908032121460.20861@malasada.lava.net>
On Mon, 2009-08-03 at 21:23 -1000, Tim Newsham wrote:
> > 2. do we have anybody successfully managing that much storage that is
> > also spread across the nodes? And if so, what's the best practices
> > out there to make the client not worry about where does the storage
> > actually come from (IOW, any kind of proxying of I/O, etc)
>
> http://labs.google.com/papers/gfs.html
> http://hadoop.apache.org/common/docs/current/hdfs_design.html
>
> > I'm trying to see how the life after NFSv4 or AFS might look like for
> > the clients still clinging to the old ways of doing things, yet
> > trying to cooperatively use hundreds of T of storage.
>
> the two I mention above are both used in conjunction with
> distributed map/reduce calculations. Calculations are done
> on the nodes where the data is stored...
Hadoop and GFS are good examples and they work great for the
single distributed application that is *written* with them
in mind.
Unfortunately, I can not stretch my imagination hard enough
to see them as general purpose filesystems backing up data
for gazillions of non-cooperative applications. The sort
of thing NFS and AFS were built to accomplish.
In that respect, ceph is more what I have in mind: it
assembles storage from clusters of unrelated OSDs into a
a hierarchy with a single point of entry for every
user/application.
The question, however, is how to avoid the complexity of
ceph and still have it look like a humongous kenfs or
fossil from the outside.
Thanks,
Roman.
next prev parent reply other threads:[~2009-08-05 0:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-30 0:43 Roman V Shaposhnik
2009-07-30 16:31 ` sqweek
2009-08-01 5:24 ` Roman Shaposhnik
2009-08-01 5:41 ` ron minnich
2009-08-01 5:53 ` Roman Shaposhnik
2009-08-01 15:47 ` ron minnich
2009-08-04 1:32 ` Roman V Shaposhnik
2009-08-04 2:56 ` ron minnich
2009-08-04 5:07 ` roger peppe
2009-08-04 8:23 ` erik quanstrom
2009-08-04 8:52 ` roger peppe
2009-08-04 9:55 ` C H Forsyth
2009-08-04 10:25 ` roger peppe
2009-08-04 14:45 ` ron minnich
2009-08-04 23:56 ` Roman V Shaposhnik
2009-08-04 23:51 ` Roman V Shaposhnik
2009-08-04 7:23 ` Tim Newsham
2009-08-05 0:27 ` Roman V Shaposhnik [this message]
2009-08-05 3:30 ` Tim Newsham
2009-08-04 8:43 ` Steve Simon
2009-08-05 0:01 ` Roman V Shaposhnik
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