On 10.10.2008 8:38 Uhr, Tarek Ziade wrote:
2008/10/10 Andreas Jung <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> Am 09.10.2008 18:59 Uhr, Martin v. Löwis schrieb: Mirrors help every other packaging system. So it stands to reason that it would help pypi too. I think since many zope people have been using mirrors instead of using pypi directly... pypi has been more available. It's running lots better for other reasons too... but less load is probably also nice for pypi :) I'm fine with people operating their own mirrors. I just don't think it can be made *invisible* to users that they use a mirror. In the mirroring systems for Linux distributions, for example, people have to explicitly select which mirror they want to use (and accept that the mirror may lag behind by a day or so). It's also clear that it is a "mere" mirror. Implict or explict mirror selection is not primary point in phase 1 of the project. The point is that we must have access to the distribution packages and eggs at any time - independent of the available of PyPI (either related to issues with the PyPI server or caused by internet outages or routing problems). An implicit selection of a mirror in case of an detected outtage would be nice but this is possibly not the most important issue right now. We can always reconfigure out buildout configurations easily to a new server or define a series of mirroring servers. What Andreas was asking how a distributed PyPI installation could work, by which I assume he was asking for one that a) is invisible (of called misleadingly "transparent") to users, and b) allows updates to replica. I'm skeptical that such an system would work all that well, and can be created in a reasonable amount of time As stated earlier: we can already define multiple servers as part of a buildout configuration. A better mirror selection algorithm would be nice to have for the future but right now we don't actually need it and can live with the current state. I think the key is to choose upon several indexes, not to use extra find-links. (I have submitted a patch for setuptools to handle several indexes for that: I think the key is to choose upon several indexes, not to used) Last, I think we should create a mirror registration system on PyPI, to ping mirrors when a new package is uploaded, so the sync is simpler.
I really want to defer this discussion for now since it is not relevant for phase 1 of the project.
Andreas
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