Martijn van Exel wrote:
> Is there another source explaining the architecture of the Rails port?
> Preferably with a
> diagram or such.
>
Hardware wise...
1x Database Server (MySQL)
3x Dedicated Rails Application Servers (Ruby 1.8.6, Rails 2.0.x)
1x Frontend Web Server (lighttpd + Ruby 1.8.6, Rails 2.0.x)
Dynamic requests are broken down into 4 types:
Web: Website, Login, Signup, Messages etc (Handled by frontend web)
TAH: All ti...@home requests
BulkAPI: API map, trackpoint, amf/reads and swf/trackpoints
API: New nodes, rest of API stuff
See: http://svn.openstreetmap.org/sites/rails_port/config/lighttpd.conf
There have been problems in the past with Rail's libxml binding leaking
memory. Rails seams to leak memory on some of the BulkAPI and
occasionally API requests. Particularly /api/0.5/map
API code has a forced Rails daemons death after ~10000 requests to free
leaked memory.
/ Grant
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