id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,uname,nginx_version 2464,nginx doesn't disable stderr logging when using syslog as it does when using a log file,thestinger@…,,"When using a file for `error_log`, nginx replaces `stderr` with it and avoids logging to the `stderr` passed by the parent. When using syslog for `error_log` such as this configuration at the top level, it still logs to stderr: error_log syslog:server=unix:/dev/log,nohostname; It also interacts oddly with dynamic configuration reloads. If stderr has already been replaced with a file, it remains that way after reloading with a configuration using syslog instead. It's possible to work around this by setting `error_log` to both `/dev/null` and a syslog output but there will still be an extra unnecessary `write` system call. error_log syslog:server=unix:/dev/log,nohostname; error_log /dev/null; I don't think this is working as intended. It seems replacing stderr with a file shouldn't be how it's disabled so that it's possible to enable stderr logging in a configuration reload. This would address the current issue where it still happens when using syslog along with making it behave properly for configuration reloads.",defect,closed,minor,,nginx-core,1.22.x,invalid,,,"Linux raphael 6.2.2-arch1-1 #1 SMP PREEMPT_DYNAMIC Fri, 03 Mar 2023 15:58:31 +0000 x86_64 GNU/Linux","nginx version: nginx/1.22.1 built with OpenSSL 3.0.7 1 Nov 2022 (running with OpenSSL 3.0.8 7 Feb 2023) TLS SNI support enabled configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --sbin-path=/usr/bin/nginx --pid-path=/run/nginx.pid --lock-path=/run/lock/nginx.lock --user=http --group=http --http-log-path=/var/log/nginx/access.log --error-log-path=stderr --http-client-body-temp-path=/var/lib/nginx/client-body --http-proxy-temp-path=/var/lib/nginx/proxy --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-cc-opt='-march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection -flto=auto' --with-ld-opt='-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now -flto=auto' --with-compat --with-debug --with-file-aio --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_degradation_module --with-http_flv_module --with-http_geoip_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-pcre-jit --with-stream --with-stream_geoip_module --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-threads"