Mercurial > hg > nginx
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Core: disabled SO_REUSEPORT when testing config (ticket #1300).
When closing a socket with SO_REUSEPORT, Linux drops all connections waiting
in this socket's listen queue. Previously, it was believed to only result
in connection resets when reconfiguring nginx to use smaller number of worker
processes. It also results in connection resets during configuration
testing though.
Workaround is to avoid using SO_REUSEPORT when testing configuration. It
should prevent listening sockets from being created if a conflicting socket
already exists, while still preserving detection of other possible errors.
It should also cover UDP sockets.
The only downside of this approach seems to be that a configuration testing
won't be able to properly report the case when nginx was compiled with
SO_REUSEPORT, but the kernel is not able to set it. Such errors will be
reported on a real start instead.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 11 Jul 2017 19:59:56 +0300 |
parents | 9eefb38f0005 |
children | 0b5f12d5c531 |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo echo "Configuration summary" if [ $USE_THREADS = YES ]; then echo " + using threads" fi if [ $USE_PCRE = DISABLED ]; then echo " + PCRE library is disabled" else case $PCRE in YES) echo " + using system PCRE library" ;; NONE) echo " + PCRE library is not used" ;; *) echo " + using PCRE library: $PCRE" ;; esac fi case $OPENSSL in YES) echo " + using system OpenSSL library" ;; NONE) echo " + OpenSSL library is not used" ;; *) echo " + using OpenSSL library: $OPENSSL" ;; esac case $ZLIB in YES) echo " + using system zlib library" ;; NONE) echo " + zlib library is not used" ;; *) echo " + using zlib library: $ZLIB" ;; esac case $NGX_LIBATOMIC in YES) echo " + using system libatomic_ops library" ;; NO) ;; # not used *) echo " + using libatomic_ops library: $NGX_LIBATOMIC" ;; esac echo cat << END nginx path prefix: "$NGX_PREFIX" nginx binary file: "$NGX_SBIN_PATH" nginx modules path: "$NGX_MODULES_PATH" nginx configuration prefix: "$NGX_CONF_PREFIX" nginx configuration file: "$NGX_CONF_PATH" nginx pid file: "$NGX_PID_PATH" END if test -n "$NGX_ERROR_LOG_PATH"; then echo " nginx error log file: \"$NGX_ERROR_LOG_PATH\"" else echo " nginx logs errors to stderr" fi cat << END nginx http access log file: "$NGX_HTTP_LOG_PATH" nginx http client request body temporary files: "$NGX_HTTP_CLIENT_TEMP_PATH" END if [ $HTTP_PROXY = YES ]; then echo " nginx http proxy temporary files: \"$NGX_HTTP_PROXY_TEMP_PATH\"" fi if [ $HTTP_FASTCGI = YES ]; then echo " nginx http fastcgi temporary files: \"$NGX_HTTP_FASTCGI_TEMP_PATH\"" fi if [ $HTTP_UWSGI = YES ]; then echo " nginx http uwsgi temporary files: \"$NGX_HTTP_UWSGI_TEMP_PATH\"" fi if [ $HTTP_SCGI = YES ]; then echo " nginx http scgi temporary files: \"$NGX_HTTP_SCGI_TEMP_PATH\"" fi echo "$NGX_POST_CONF_MSG"