From f95d6562441fd2ec059ab7174f688dadd9215f1f Mon Sep 17 00:00:00 2001 From: Galen Charlton Date: Tue, 24 Jan 2023 14:10:32 -0500 Subject: [PATCH] Bug 32716: larger proxy_buffer_size in NGINX example config This patch updates the example NGINX config to increase the proxy_buffer_size to 16k. The default value of 4k (on some platforms) has empirically been shown to be a bit too small for the Link headers emitted by the REST API when pagination is requested. To test ------- [1] Set up a Koha system with NGINX as a reverse proxy in front of it (either in front of Apache or in front of of Starman). [2] Perform a patron search that returns at least two pages of results and navigate to the second page. [3] Note that the navigation can fail with a 502 HTTP error and an "upstream sent too big header while reading response header from upstream" error in the NGINX log. The problem is most likely when the pagesize of the server running NGINX is 4096 bytes. [4] Update the NGINX configuration per this patch and restart NGINX. [5] This time, repeating step 2 should work. Signed-off-by: Galen Charlton Signed-off-by: Brendan Gallagher --- etc/nginx.conf | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/etc/nginx.conf b/etc/nginx.conf index 4701a9a6456..184ce3ec94b 100644 --- a/etc/nginx.conf +++ b/etc/nginx.conf @@ -17,6 +17,10 @@ server { location / { include proxy_params; proxy_pass http://intranet; + + # provide room for the Link headers emitted + # by REST API methods when doing pagination + proxy_buffer_size 16k; } } @@ -29,5 +33,9 @@ server { location / { include proxy_params; proxy_pass http://opac; + + # provide room for the Link headers emitted + # by REST API methods when doing pagination + proxy_buffer_size 16k; } } -- 2.30.2