Service/mirrors
Introduction
A content delivery network or content distribution network (CDN) is a system of computers containing copies of data, placed at various points in a network so as to maximize bandwidth for access to the data from clients throughout the network. A client accesses a copy of the data near to the client, as opposed to all clients accessing the same central server, thereby causing a bottleneck near that server.
Mirrorbrain, Bouncer, Fedora Mirror Manager, and Cacheboy are four possible choices for scaling up the Sugar Labs content delivery network. Long term, Cacheboy looks like it might be the best fit for Sugar Labs, but the project must become more stable before becoming Sugar Labs primary CDN. Bouncer is currently being used as successfully by Mozilla. But development ended at the end of 2008. Mozilla is currently investigating Mirrorbrain. Mirrorbrain looks promising.
Goals
- Reduce bandwith at primary download server.
- Improve quality of service for users.
- Move content closer to users.
Mirrors
Global Mirror
CacheBoy provides global mirroring. It finds the nearest location for your download. Read more information about CacheBoy on http://cacheboy.net
| http | ftp | rsync | country | sync | mirrorhost | stats | contact |
|---|---|---|---|---|---|---|---|
| http://sugarlabs.cdn.cacheboy.net/ | none | none | All continents | 1h | Cacheboy | - | Marten |
Local Mirrors
Here is a list of localized mirrors, please select a mirror close by and try to avoid to the main site:
| http | ftp | rsync | country | sync | mirrorhost | stats | contact |
|---|---|---|---|---|---|---|---|
| download.sugarlabs.org | ftp | rsync://download.sugarlabs.org/ | Boston MA | 0 | Sunjammer | - | Bernie |
| download2.sugarlabs.org | - | - | Boston MA | 1h | Solarsail | - | Bernie |
| ftp.snt.utwente.nl | ftp | - | The Netherlands | 1x24h | SNT | - | Marten |
| ftp.nluug.nl | ftp | rsync://ftp.nluug.nl/sugar | The Netherlands | 1x24h | NLUUG | stats | Marten |
Becoming a Mirror
rsync -avz --exclude=soas/snapshots --exclude=soas/xoimages rsync://sunjammer.sugarlabs.org/pub ~/d3.sl.o
Monitoring
There is some basic information on the status of our mirrors.
Your can find it here, http://martenvijn.nl/sugar_mirror.html
Mirrorbrain
Mirrrorbrain is used by several major project including opensuse and openoffice. It is quite stable, under activate development, and well documented,
Installation from scratch
Please see http://mirrorbrain.org/docs/installation/debian/ . Our Sugar Labs installation instructions have become the official mirrorbrain on ubuntu instructions.
Installation from packages
Add the following line to sources.list to get the latest packages for the opensuse build system.
sudo vim /etc/apt/sources.list
deb http://download.opensuse.org/repositories/Apache:/MirrorBrain/xUbuntu_9.04/ /
Install the mirrorbrain packages
sudo apt-get update sudo apt-get install mirrorbrain mirrorbrain-tools mirrorbrain-scanner libapache2-mod-mirrorbrain libapache2-mod-autoindex-mb