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diff src/http/ngx_http_upstream.h @ 6966:fa56ab75cffc

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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 <piotrsikora@google.com>
author Piotr Sikora <piotrsikora@google.com>
date Fri, 24 Mar 2017 02:48:03 -0700
parents 1aeaae6e9446
children 5a3ab1b5804b
line wrap: on
line diff
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -26,10 +26,11 @@
 #define NGX_HTTP_UPSTREAM_FT_HTTP_504        0x00000080
 #define NGX_HTTP_UPSTREAM_FT_HTTP_403        0x00000100
 #define NGX_HTTP_UPSTREAM_FT_HTTP_404        0x00000200
-#define NGX_HTTP_UPSTREAM_FT_UPDATING        0x00000400
-#define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK       0x00000800
-#define NGX_HTTP_UPSTREAM_FT_MAX_WAITING     0x00001000
-#define NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT  0x00002000
+#define NGX_HTTP_UPSTREAM_FT_HTTP_429        0x00000400
+#define NGX_HTTP_UPSTREAM_FT_UPDATING        0x00000800
+#define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK       0x00001000
+#define NGX_HTTP_UPSTREAM_FT_MAX_WAITING     0x00002000
+#define NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT  0x00004000
 #define NGX_HTTP_UPSTREAM_FT_NOLIVE          0x40000000
 #define NGX_HTTP_UPSTREAM_FT_OFF             0x80000000
 
@@ -38,7 +39,8 @@
                                              |NGX_HTTP_UPSTREAM_FT_HTTP_503  \
                                              |NGX_HTTP_UPSTREAM_FT_HTTP_504  \
                                              |NGX_HTTP_UPSTREAM_FT_HTTP_403  \
-                                             |NGX_HTTP_UPSTREAM_FT_HTTP_404)
+                                             |NGX_HTTP_UPSTREAM_FT_HTTP_404  \
+                                             |NGX_HTTP_UPSTREAM_FT_HTTP_429)
 
 #define NGX_HTTP_UPSTREAM_INVALID_HEADER     40