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Date: Fri, 23 Oct 2009 11:17:38 +0100
From: Chris Webb <chris@arachsys.com>
Message-ID: <20091023101738.GA1997@arachsys.com>
References: <4ADE988B.2070303@lab.ntt.co.jp>
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Subject: [Qemu-devel] Re: [ANNOUNCE] Sheepdog: Distributed Storage System
	for KVM
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To: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Cc: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>, Dietmar Maurer <dietmar@proxmox.com>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> writes:

> We use JGroups (Java library) for reliable multicast communication in
> our cluster manager daemon. We don't worry about the performance much
> since the cluster manager daemon is not involved in the I/O path. We
> might think about moving to corosync if it is more stable than
> JGroups.

I'd love to see this running on top of corosync too. Corosync is a well
tested, stable cluster manager, and doesn't have the JVM dependency of
jgroups so feels more suitable for building 'thin virtualisation fabrics'.

Cheers,

Chris.