I'm working on a project where I have a client that needs to send the same 
data to multiple servers.  I encountered a situation where one of the 
servers was slow in responding.  It seemed like the slow server caused us 
to block until its message had been sent which slowed down the sending of 
data to the other servers.  This led me down the road of exploring the 
async call.  

I took the helloworld async client and server samples and spun up three 
instances of the servers (each on a separate port, but same machine).  The 
second instance had a 1-second sleep.  I then created a client that sends 
the same message to all three servers and I was expecting the servers to 
reply out of order 1, 3, then 2 since I put a sleep in the second one.  I 
get the replies in order, which seems to defeat the purpose of the async 
call.  

Am I misunderstanding how the async calls should behave?  Is there maybe 
another way to solve this issue?

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