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From: Edward Lee <edi...@gmail.com>
Date: Sat, 16 May 2009 21:30:19 -0500
Local: Sat, May 16 2009 10:30 pm
Subject: Re: How about data format versioning per engine?
On Sat, May 16, 2009 at 10:12 AM, Wladimir Palant
<trev....@adblockplus.org> wrote: Right now for these early versions of Weave, we're perhaps wiping more > integrity in Weave is wiping server data every time there is a > mismatch between Weave version often than necessary because we bump up the version and cause mismatches. But eventually we'll want to bump the weave version without changing the server version number. > I guess this solution is good enough - but only if all data comes from the Weave extension itself. Part of the reason for wiping is that base record structure might change -- independent of the engines. For example, we changed how deleted records were stored on the server, and that would be incompatible for all engines. > As soon as other extensions start registering their engines there will be trouble. Engines could make use of their own versioning and decide to wipe on their own. But actually, engines can put an-opaque-to-weave version field in each record that it uploads, and the engine can decide what to do with different version numbers. But currently none of the built-in engines do that, so perhaps we Dan: Down the line, what types of changes would warrant a weave server Either way, it might be a good idea to incorporate versioning into the Ed You must Sign in before you can post messages.
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