[mirror-admin] Please use --delay-updates

[Matt_Domsch at Dell.com]

I received a report last night from a Fedora user in Germany who experienced a weird problem.  MirrorManager would direct him to a mirror, yum would download the repomd.xml file from it and verify it was current and correct.  Yum would then go to download the repodata/*-prestodata* file noted in repomd.xml, and would fail with a HTTP 404 (not found), and then fail over to the next mirror, only to have the same thing happen, until it hit a complete mirror.

So two requests:

1) please use the --delay-updates option to rsync.  I know it requires more disk space, but it reduces the window in which mirrors are inconsistent like this.

2) if you are excluding content, such as the deltarpms, please exclude whole directories, not individual files within a directory.  MM gets very confused if you exclude individual files.  I don't think that's what was happening here, but I offer this as a reminder.

Thanks,
Matt
Fedora Mirror Wrangler

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Matt Domsch
Technology Strategist
Dell | Office of the CTO

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