Ruby script hangs on large first value

In the following script, writing the value "data" hangs the script unless a smaller value is written first.

In the wireshark trace, I do not see any outbound memcache traffic when the script fails.

require 'rubygems'
require 'couchbase'

begin

#Create a large array and a small value
value = 2
data = Array.new

for i in 0..200000
data.push(Time.at(rand * Time.now.to_i))
end

cb = Couchbase.new("http://10.17.2.172:8091/pools/default")
cb.quiet = false

puts value;
puts data.length();

#uncomment out line below to have it work.
#cb.set("smallValue1", value)

cb.set("bigValue1",data)

cb.set("smallValue2", value)

end