From: Maxim Dounin <mdounin@mdounin.ru>
Date: Mon, 9 Nov 2020 19:40:53 +0000 (+0300)
Subject: Request body: improved logging.
X-Git-Tag: release-1.19.5~8
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=8ed303c055ee003285231b6d781bfe2dd9c0d3d1;p=nginx.git

Request body: improved logging.

Added logging before returning NGX_HTTP_INTERNAL_SERVER_ERROR if there
are busy buffers after a request body flush.  This should never happen
with current code, though bugs can be introduced by 3rd party modules.
Make sure debugging will be easy enough.
---

diff --git a/src/http/ngx_http_request_body.c b/src/http/ngx_http_request_body.c
index f3b938382..07e78d780 100644
--- a/src/http/ngx_http_request_body.c
+++ b/src/http/ngx_http_request_body.c
@@ -305,6 +305,9 @@ ngx_http_do_read_client_request_body(ngx_http_request_t *r)
                         return NGX_AGAIN;
                     }
 
+                    ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+                                  "busy buffers after request body flush");
+
                     return NGX_HTTP_INTERNAL_SERVER_ERROR;
                 }