Bouncer/Sentry Requirements

Must-haves

• mirrors dropping in and out under high load and we're not able to adjust it automatically
  • need to be able to see that this is happening
    • I recently added this to sentry, https://nagios.mozilla.org/sentry/, code's in the sentryview directory on the production branch --Justdave 07:52, 7 August 2009 (UTC)
  • drop weight down until the mirror stops the behavior
    • and supporting code to take care of this half in sentry.pl in the production branch --Justdave 07:52, 7 August 2009 (UTC)
• consolidate different branches and get trunk up-to-date
• sentry sees something as slow from SJC but for remote centers it works fine
  • override a mirror so sentry can't pull it
  • adjust what we deem as "slow" by using relative latency
  • deploy a sentry system that has multiple instances that are local
  • use virtual machines in other countries
  • The above were wild ideas we've had at certain points. --Justdave 07:52, 7 August 2009 (UTC)
    • GeoIP locating and monitoring from multiple locations will probably be the best solution for this.
    • Adjust the Geolocation targets for each mirror based on where it tests best from, for example.
    • Many mirrors have massive amounts of bandwidth available within their own country, but have international bandwidth restrictions, need to be able to restrict foreign traffic in these cases.
• files that don't exist are wrongly offered to users
  • sentry does not check for locales
    • hacked on the production branch to check for the last locale in the rsync for each product, would be better to individually check them all --Justdave 07:52, 7 August 2009 (UTC)
• md5 sum hash-checking using byte-ranges
• need to check that all files are served with the correct mime types
• set up a login system to allow mirror admins to be able to log in to admin screens
• they would see only information they were allowed to see via ACL
• email mirror contact if sentry pull out a mirror - bug 457609
• peeringdb.com - re-use their stuff or use ours?
• sourceforge-like download "credit" - mirror icons
• rewrite admin tools to be more user-friendly