From: Maxim Dounin <mdounin@mdounin.ru>
Date: Fri, 10 Feb 2017 14:49:19 +0000 (+0300)
Subject: Cache: increased cache header Vary and ETag lengths to 128.
X-Git-Tag: release-1.11.10~3
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=5544756296e5abaecb5f640753d6de939b701035;p=nginx.git

Cache: increased cache header Vary and ETag lengths to 128.

This allows to store larger ETag values for proxy_cache_revalidate,
including ones generated as SHA256, and cache responses with longer
Vary (ticket #826).

In particular, this fixes caching of Amazon S3 responses with CORS
enabled, which now use "Vary: Origin, Access-Control-Request-Headers,
Access-Control-Request-Method".

Cache version bumped accordingly.
---

diff --git a/src/http/ngx_http_cache.h b/src/http/ngx_http_cache.h
index 5b135e209..f9e966409 100644
--- a/src/http/ngx_http_cache.h
+++ b/src/http/ngx_http_cache.h
@@ -24,10 +24,10 @@
 #define NGX_HTTP_CACHE_SCARCE        8
 
 #define NGX_HTTP_CACHE_KEY_LEN       16
-#define NGX_HTTP_CACHE_ETAG_LEN      42
-#define NGX_HTTP_CACHE_VARY_LEN      42
+#define NGX_HTTP_CACHE_ETAG_LEN      128
+#define NGX_HTTP_CACHE_VARY_LEN      128
 
-#define NGX_HTTP_CACHE_VERSION       4
+#define NGX_HTTP_CACHE_VERSION       5
 
 
 typedef struct {