From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Zhuravlev Date: Mon, 22 Dec 2008 17:45:57 +0300 Subject: [Lustre-devel] global epochs [an alternative proposal, long and dry]. In-Reply-To: <18767.41574.948255.718042@gargle.gargle.HOWL> References: <18767.18277.958956.959956@gargle.gargle.HOWL> <494F7F6B.9080509@sun.com> <18767.35839.133024.625896@gargle.gargle.HOWL> <200812221648.19278.alexander.zarochentsev@sun.com> <18767.41574.948255.718042@gargle.gargle.HOWL> Message-ID: <494FA825.4080406@sun.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lustre-devel@lists.lustre.org Nikita Danilov wrote: > All in all, I have a feeling that _all_ such algorithms have similar > communication overhead for the `usual' workload. not sure what you meant by "such" and "usual", but dependency-based recovery may have zero overhead for "usual local" workload, in terms of network and disk traffic. thanks, Alex