Why packages sources are NOT mirrored?
Florian Weimer
fweimer at redhat.com
Thu Sep 17 18:19:47 UTC 2015
On 09/17/2015 07:26 PM, Stephen John Smoogen wrote:
> And to pre-answer something that might be related, there is no budget to
> put this into a CDN. Those are extremely expensive operations and do not
> volunteer space.
Some of them do, for Debian at least. But I don't know what has
happened to early attempts in that direction, lack of IPv6 support was a
bit of a dealbreaker back then.
The problem I see is that CDNs are only work well if you use popular
resources because unlikely mirrors, local nodes are not preseeded with
content almost no one ever downloads. So getting a SRPM or source
tarball from a CDN will likely trigger a local cache miss and a sluggish
CDN-internal download.
For my needs and my network location, the Fedora (and CentOS and Debian)
mirror infrastructure offers significantly better performance than
cdn.redhat.com.
--
Florian Weimer / Red Hat Product Security
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