Date: Fri, 17 Sep 2004 13:56:44 -0700 (PDT) From: Atle Veka <atlev@flyingcroc.net> To: freebsd-questions@freebsd.org Subject: Coda, OpenAFS, or other alternatives that can handle high load Message-ID: <20040917133748.W31880@fincher.users.accretive-networks.net>
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Hey all, I'm looking for feedback on distributed filesystems like Coda or OpenAFS that does client side caching. Our needs at the moment are read-only but experiences with multiple nodes doing writes on a distributed filesystem would be nice as well. Let me explain our setup briefly; We have 17 load balanced FreeBSD servers in the cluster. 5 of those backend servers do ~20 requests per second (PHP - each hit has the potential of accessing multiple files, anywhere from 1-10) while the other 12 do ~120 requests per second (graphics - 5000 B/request on average) at peak. Each individual backend server has an identical set of content/data distributed via rsync. The optimal setup would be if each cluster could mount a read-only filesystem which is replicated for redundancy at the backend. From what I have read about Coda and OpenAFS, both already support this and they also have good caching features. What I would like to hear about are stability and performance experiences in the FreeBSD community. I have read that Coda in the past has had corruption problems. Thanks! Atle - Flying Crocodile Inc, Unix Systems Administrator
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