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Re: [Gluster-devel] Spurious disconnections / connectivity loss

From: Daniel Maher
Subject: Re: [Gluster-devel] Spurious disconnections / connectivity loss
Date: Mon, 01 Feb 2010 14:16:37 +0100
User-agent: Thunderbird (X11/20090817)

Gordan Bobic wrote:

That's hardly unexpected. If you are using client-side replicate, I'd expect to see the bandwidth requirements multiply with the number of replicas. For all clustered configurations (not limited to glfs) I use a separate LAN for cluster communication to ensure best possible throughput/latencies, and specifically in case of glfs, I do server side replicate so that the replicate traffic gets offloaded to that private cluster LAN, so the bandwidth requirements to the clients can be kept down to sane levels.

If you're willing to describe your setup further, i'd love to hear about it. I'm currently using client-side replication, and for the reasons of scalability you described, i'd like to move to a server-side replication setup.

In particular, i'm interested in how you handle the connectivity between the clients and the servers vis-à-vis load balancing (if any) and availability. For example, in your configuration, how does a given client « know » which server to speak to, and what happens that server becomes inaccessible ?

I realise that this may not be necessarily be appropriate discussion for the devel mailing list, but iirc, you're not on the user list, hence the reply here.

Daniel Maher <dma+gluster AT witbe DOT net>

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