commit 5520cdc96644d66c6565c5552db276193653b683
author Maxim Dounin <mdounin@mdounin.ru> Mon Nov 09 22:40:53 2020 +0300
committer Maxim Dounin <mdounin@mdounin.ru> Mon Nov 09 22:40:53 2020 +0300
tree 7ce1587cea39fad649232b46eae752612732b9c1
parent 6607f8469e29a1be76aa804bf1d1b01c5f3c6dfa

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.

src/http/ngx_http_request_body.c

diff --git a/src/http/ngx_http_request_body.c b/src/http/ngx_http_request_body.c
index f3b9383..07e78d7 100644
--- a/src/http/ngx_http_request_body.c
+++ b/src/http/ngx_http_request_body.c
@@ -305,6 +305,9 @@
                         return NGX_AGAIN;
                     }
 
+                    ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+                                  "busy buffers after request body flush");
+
                     return NGX_HTTP_INTERNAL_SERVER_ERROR;
                 }