[mirror-admin] Having to throttle back rsync on download servers

[Stephen John Smoogen]

We are experiencing a problem with the download servers peaking out nfs
traffic with our NetApp. We are trying to lower this and looking at some
mirrors that are rsyncing from the server over a 100 times a day.

Currently we have put in an iptables connection limit which if you are
either trying to do multiple rsyncs at the same time you may run into. At
this point, please throttle back your gets.

Our next step will be to explore other options and asking for feedback on
how those options are implemented and work.

If you are level 0 or 1 mirror which runs into 'connection refused' please
let us know so we can make sure that we have the correct ip address in the
iptables file.

Please check your cron jobs and similar things to see how often you are
rsyncing from the servers. Most of the time you don't need to do this more
than 4 or 5 times a day for a complete sync. Doing it 20+ is problematic.
Doing it 100 times is not helping other mirrors :).

Thank you
Smoogen

-- 
Stephen J Smoogen.
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