Hi all: The directive "proxy_next_upstream error timeout" takes effect on three network actions: connection, send and recieve. In practice ,we realy want to try next upstream according to in which actions we are. For example, I do not want to try next upstream if some error occurs or timed out when recieving response from upstream, otherwise it maybe duplicate my request .
The proxy_next_upstream_action is involved to address this problem , the directive takes one or more parameter : conn, send, recv which indicates whether we should try next upstream. Usage: proxy_next_upstream error timeout; proxy_next_upstream_action conn; Try next upstream if error or timed out on connection. Anyone suggests ?
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