From ca1a5057e2a0429350ec2d07c4616a75e34424e3 Mon Sep 17 00:00:00 2001 From: Piotr Sikora Date: Fri, 24 Mar 2017 02:48:03 -0700 Subject: Upstream: allow recovery from "429 Too Many Requests" response. This change adds "http_429" parameter to "proxy_next_upstream" for retrying rate-limited requests, and to "proxy_cache_use_stale" for serving stale cached responses after being rate-limited. Signed-off-by: Piotr Sikora --- src/http/ngx_http_upstream.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/http/ngx_http_upstream.c') diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c index 43079563d..36952860c 100644 --- a/src/http/ngx_http_upstream.c +++ b/src/http/ngx_http_upstream.c @@ -436,6 +436,7 @@ static ngx_http_upstream_next_t ngx_http_upstream_next_errors[] = { { 504, NGX_HTTP_UPSTREAM_FT_HTTP_504 }, { 403, NGX_HTTP_UPSTREAM_FT_HTTP_403 }, { 404, NGX_HTTP_UPSTREAM_FT_HTTP_404 }, + { 429, NGX_HTTP_UPSTREAM_FT_HTTP_429 }, { 0, 0 } }; @@ -4126,6 +4127,10 @@ ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, status = NGX_HTTP_NOT_FOUND; break; + case NGX_HTTP_UPSTREAM_FT_HTTP_429: + status = NGX_HTTP_TOO_MANY_REQUESTS; + break; + /* * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING * never reach here -- cgit