[mirror-admin] MM crawler now every 4-5 hours

[Matt Domsch]

I made some improvements to the MirrorManager crawler's launcher
yesterday, so now it constantly keeps 15 hosts being crawled in
parallel.  This has reduced the crawl time from about 12 hours to cover
everyone, to 4-5 hours.  This should mean faster update times for the
mirrorlist and publiclist pages - if the crawler thinks a directory
isn't up-to-date, wait a few hours (instead of 12) and it should
self-correct.  Of course, please continue to run report_mirror too.

Thanks,
Matt

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Matt Domsch
Linux Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux

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