upstream keepalive connections for all servers or each server?

fengx nginx-forum at
Mon May 8 08:24:59 UTC 2017


As known, the keepalive directive can activate the connections cache for
upstream servers. I know the connection pool is in each worker process. But
I'ms confused that the connection number is for each upstream server or is
shared for all servers? It's documented at 


Posted at Nginx Forum:,274098,274098#msg-274098

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