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Package
 Caching
Solutions
  Jonathan Oxer
  Debian Miniconf 7
  January 28, 2008
 Melbourne, Australia
Problem:
  for n machines,
  all packages are
downloaded n times
So run a local
mirror, right?
 Not so fast!
A mirror is a dumb
   copy of the
 entire archive...
...including every
  package you've
 never installed!
ftp.au.debian.org
      th            th
Dec 16 2007 – Jan 19 2008:
1,200,598 package downloads
ftp.au.debian.org
      th            th
Dec 16 2007 – Jan 19 2008:
1,200,598 package downloads
   277,110 different .debs...
Downloads / .deb: Debian i386
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
Debian Package Caching Solutions
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Debian Package Caching Solutions

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Talk by Jonathan Oxer at the Debian Miniconf at linux.conf.au in January 2008 about the various caching mechanisms available for Debian / Ubuntu packages. Provides an overview of apt-proxy, apt-cacher, and approx. More information at http://jon.oxer.com.au/talks/id/100

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Transcript of "Debian Package Caching Solutions"

  1. 1. Package Caching Solutions Jonathan Oxer Debian Miniconf 7 January 28, 2008 Melbourne, Australia
  2. 2. Problem: for n machines, all packages are downloaded n times
  3. 3. So run a local mirror, right? Not so fast!
  4. 4. A mirror is a dumb copy of the entire archive...
  5. 5. ...including every package you've never installed!
  6. 6. ftp.au.debian.org th th Dec 16 2007 – Jan 19 2008: 1,200,598 package downloads
  7. 7. ftp.au.debian.org th th Dec 16 2007 – Jan 19 2008: 1,200,598 package downloads 277,110 different .debs (35,513 in i386 alone) 16,296 packages in i386
  8. 8. Downloads / .deb: Debian i386
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