Detecting upstream server failures

Weibin Yao nbubingo at
Wed May 5 06:34:35 MSD 2010

John Moore at 2010-5-4 21:07 wrote:
> I'm using the nginx as a reverse proxy server, with the upstream 
> module, successfully doing round-robin load balancing between two 
> backend servers. Is there some way I can determine if one of the back 
> end servers has gone down? Nginx will seamlessly take it out of pool 
> if it does go down, which is great, but it would be handy to know 
> about it so some alert could be sent to the admin.
See this:
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> nginx mailing list
> nginx at

Weibin Yao

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