Upstream: fixed logging level of upstream invalid header errors.
In b87b7092cedb (nginx 1.21.1), logging level of "upstream sent invalid
header" errors was accidentally changed to "info". This change restores
the "error" level, which is a proper logging level for upstream-side
errors.
diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index 69ac0f7..4a8dc33 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -2021,7 +2021,7 @@
/* rc == NGX_HTTP_PARSE_INVALID_HEADER */
- ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"upstream sent invalid header: \"%*s\\x%02xd...\"",
r->header_end - r->header_name_start,
r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index a5cc27b..7c4061c 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2021,7 +2021,7 @@
/* rc == NGX_HTTP_PARSE_INVALID_HEADER */
- ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"upstream sent invalid header: \"%*s\\x%02xd...\"",
r->header_end - r->header_name_start,
r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
index 570713d..e5d31ae 100644
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -1142,7 +1142,7 @@
/* rc == NGX_HTTP_PARSE_INVALID_HEADER */
- ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"upstream sent invalid header: \"%*s\\x%02xd...\"",
r->header_end - r->header_name_start,
r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
index 4f9c349..d46741a 100644
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -1363,7 +1363,7 @@
/* rc == NGX_HTTP_PARSE_INVALID_HEADER */
- ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"upstream sent invalid header: \"%*s\\x%02xd...\"",
r->header_end - r->header_name_start,
r->header_name_start, *r->header_end);
