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.
/* 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);
/* 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);
/* 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);
/* 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);