devpi-dev November 2016

devpi-dev@python.org

2 participants
3 discussions

Automatic replica selection for devpi-client
by Florian Schulze 30 Nov '16

30 Nov '16

Hi! I was thinking about a way to let "devpi use" select a replica automatically. This is more of a brain dump for now. My current idea would be this: The primary server would provide a json file with a list of available replicas. When you invoke "devpi use" on the primary server, devpi-client would look for that list and then somehow select a good replica. The hard part is the selection of the replica. A simple solution would be to request the +api route on each replica, which is quick, and we measure the time it took. When we tried all replicas, we use the fastest reply. This has some obvious problems, like having to try all replicas, handling timeouts and momentary slowness of replies. I still think this would be a nice addition. One can still always explicitly "devpi use" a certain replica. IMO "devpi use" can take up to 2-3 seconds for the replica selection without making it painful for normal use. The mirror selection could also be done server side, by providing a dynamic replica list based on request IP or whatever. Initially it would be easiest to provide the replica list statically via nginx, because atm the primary only knows the IP address of replicas. This is because most installations use the X-Outside-Url header instead of the --outside-url option to provide more flexibility. We might also want to provide a way in devpi-client to know which replica belongs to a primary to share the login info. I guess the UUID would be useful for that. Regards, Florian Schulze

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RFC for server initialization
by Florian Schulze 30 Nov '16

30 Nov '16

Hi! I'd like some input on https://bitbucket.org/hpk42/devpi/issues/377/new-init-option Is it a good idea? What about the last paragraph related to semver and import/export? Regards, Florian Schulze

2 1

some notes on new list / search
by holger krekel 17 Nov '16

17 Nov '16

Hello all, this is the new mailing list for devpi-dev which was kindly created by Mark Sapiro and we also ported the archives which you can search: https://mail.python.org/mm3/mailman3/lists/devpi-dev.python.org/ If you want to unsubscribe without creating an account please drop me a mail and i'll do it for you. cheers, holger

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devpi-dev November 2016