Sorry, not working is not an error message, so nobody can help you.
Perhaps you *should* edit this example?
What have you try?
What is the error? What's in the access-/errorlog (srv1 and srv2)?

On 14.10.2016 16:28, avk wrote:
> Thank you for reply, but not working.
>
> Posted at Nginx Forum: https://forum.nginx.org/read.php?2,270269,270278#msg-270278
>
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