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Re: [Gluster-devel] cluster/stripe

From: Raghavendra G
Subject: Re: [Gluster-devel] cluster/stripe
Date: Tue, 25 Sep 2007 14:57:40 +0400

Hi Alexey,

Can you please try with glusterfs--mainline--2.5--patch-493 and check
whether the bug still persists? Also If the bug is not fixed can you please
send glusterfs server and client configuration files?


On 9/25/07, Alexey Filin <address@hidden> wrote:
> Hi,
> address@hidden/glusterfs--mainline--2.5--patch-485
> fuse-2.7.0-glfs3
> Linux (Scientific Linux CERN SLC release
> 4.5(Beryllium)), i386
> 4 HPC cluster work nodes, each node has two Gigabit interfaces for two
> LANs
> (Data Acquisition System LAN and SAN).
> server.vol and client.vol were made with example in
> but with alu
> scheduler:
> brick->posix-locks->io-thr->wb->ra->server
> ((client1+client2)->stripe1)+((client3+client4)->stripe2)->afr->unify->iot->wb->ra->ioc
> unify is supposed to connect another 4 nodes after tests
> copying from local FS to GlusterFS and inversely on client1 works fine,
> performance nearly native (as for local to local)
> back-end FS ext3 (get/setfattr don't work)=> afr works fine, stripe
> doesn't
> work at all
> back-end FS xfs (get/setfattr work fine) => afr works fine, stripe doesn't
> work at all
> changed client.vol to: (client1+client2)->stripe1->iot->wb->ra->ioc =>
> stripe doesn't work
> log files don't contain anything interesting,
> 1) How to make cluster/stripe work?
> "...if one uses 'cluster/afr' translator with 'cluster/stripe' then
> GlusterFS can provide high availability."
> 2) Is HA provided for stripe+afr only or for afr alone too?
> I suppose to use cluster work nodes with local hard disks as a distributed
> on-line and off-line storage for raw data acquired on our experimental
> setup
> (tape back-up is provided of course). It's supposed to keep 10-20
> terabytes
> of raw data in total (the cluster is supposed to upgrade in future).
> 3) Has it sense to use cluster/stripe (HA is very desirable) in the case?
> Thanks for answers in advance.
> Alexey Filin.
> Experiment OKA, Institute for High Energy Physics, Protvino, Russia
> PS Also I tortured GlusterFS with direct file manipulation (through
> back-end
> FS), results are good for me
> _______________________________________________
> Gluster-devel mailing list
> address@hidden

Raghavendra G

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