Gentoo Archives: gentoo-project

From: Andrew Savchenko <bircoph@g.o>
To: gentoo-project@l.g.o
Subject: Re: [gentoo-project] RFC: Dropping rsync as a tree distribution method
Date: Tue, 18 Dec 2018 09:56:03
Message-Id: 20181218125555.1927321328046d0a2ecd3e16@gentoo.org
In Reply to: [gentoo-project] RFC: Dropping rsync as a tree distribution method by Alec Warner
1 On Sat, 15 Dec 2018 23:15:47 -0500 Alec Warner wrote:
2 > Hi,
3 >
4 > I am currently embarking on a plan to redo our existing rsync[0] mirror
5 > network. The current network has aged a bit. Its likely too large and is
6 > under-maintained. I think in the ideal case we would instead pivot this
7 > project to scaling out our git mirror capabilities and slowly migrate all
8 > consumers to pulling the git tree directly. To that end, I'm looking for
9 > blockers as to why various customers cannot switch to pulling the gentoo
10 > ebuild repository from git[1] instead of rsync.
11 >
12 > So for example:
13 >
14 > - bandwidth concerns (preferably with documentation / data.)
15 > - Firewall concerns
16 > - CPU concerns (e.g. rsync is great for tiny systems?)
17 > - Disk usage for git vs rsync
18 > - Other things i have not thought of.
19
20 My main concern with git is downlink fault tolerance. If rsync
21 connection is broken, it can be easily restored without much data
22 retransmission. If git download connection is broken, it has to
23 start all over again. So there are cases where rsync will be always
24 much more preferable than git.
25
26 Best regards,
27 Andrew Savchenko

Replies