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justindossey/gist:2255384

Created March 30, 2012 21:40
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Flip read_secondary via MongoMapper
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gistfile1.rb
trap('USR2') do
# reconnect to MongoDB with read_secondary reversed
result=MongoMapper.connection.instance_eval('@read_secondary = !@read_secondary')
logger.notice("#{Time.now}: now reading from #{result ? 'secondary' : 'primary'}")
end
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