[nginx] HTTP/2: unknown frames now logged at info level.

[Maxim Dounin]

details:   http://hg.nginx.org/nginx/rev/e80930e5e422
branches:  
changeset: 7225:e80930e5e422
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Mon Mar 05 21:35:13 2018 +0300
description:
HTTP/2: unknown frames now logged at info level.

diffstat:

 src/http/v2/ngx_http_v2.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (14 lines):

diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -783,8 +783,8 @@ ngx_http_v2_state_head(ngx_http_v2_conne
                    type, h2c->state.flags, h2c->state.length, h2c->state.sid);
 
     if (type >= NGX_HTTP_V2_FRAME_STATES) {
-        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, h2c->connection->log, 0,
-                       "http2 frame with unknown type %ui", type);
+        ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
+                      "client sent frame with unknown type %ui", type);
         return ngx_http_v2_state_skip(h2c, pos, end);
     }