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Re: Some architectural changes

Mike McGrath wrote:

Well, app1+ are now all identical, for the most part.  This allows us to
think of our app servers as truly being part of a farm.  The exception to
this right now is those apps requiring our nfs mount in PHX.  I'm still
debating what to do about this but so far haven't really come up with a
good answer.

2 choices come to mind:

1) accept that they're a different category, and partition them accordingly

2) could maybe tinker around w/ some things like MogileFS or HDFS or something even crazier :)

We'll be distributing load with haproxy.  Just because an app is on a
server doesn't mean that it will get hit.  This allows us to distribute
load intelligently and hopefully allow us to get local proxies preferring
local app servers so geoIP dns can be deployed.

Do all apps get deployed to all servers in this category?

The bapp servers (there's only 1 right now) will be our job control
servers.  Right now we kind of just have cron jobs spread all over the
place and in some instances this has caused problems with production

Cool. How many bapp servers are we running these days, and how do we choose what gets run where?


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