changes post-freeze

[Matt Domsch]

A few things I'd like to change starting tomorrow (post-freeze).

* change the MM update-master-directory-list cronjob to start at 0 and
  30 past the hour, from its current schedule of trying to start every
  15 minutes.  It is taking about 20 minutes on average to run, so
  really is only running twice an hour anyhow.

* bump back the MM update-mirrorlist cronjob to start at :40 past the
  hour.  It takes about 20 minutes to complete, and I would like the
  new content to land at the top of the hour.

* in modules/rsync/files/rsyncd.conf.secondary1, exclude alt/stage.
  Mirrors shouldn't be able to sync this content.

* in MM prod.cfg, exclude pub/alt/stage.  Mirrors shouldn't have
  this content, and it's extra directory walks we don't need.

* increase the number of crawlers, from 45 to 75.  A full run is
  taking about 3 hours now, I'd like to bring this down to under 2.
  This only affects bapp1, whose load average is still under 1 and has
  plenty of free RAM and CPU it seems.

Objections or comments?

Thanks,
Matt

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