最近遇到了一个非常奇怪的问题。我们使用Amazon CodeDeploy将我们的Java应用程序部署到后端Web服务器。它工作正常一段时间然后注意到我们的网站一直显示旧版本(不是最新的代码)。
经过几个小时的AWS来回,我们了解到CodeDeploy很好并按预期工作。那问题是什么?
我设法检查了tomcat并看到我们的更改已正确部署到tomcat而没有任何错误。唯一剩下的东西......我们的负载均衡器(Nginx)。
我在虚拟主机文件
中设置了expires off ;
我还在nginx.conf文件中设置了 sendfile off;
此时,我几乎不知所措,不知道还有什么可以尝试......
非常感谢任何帮助。
澄清: 我正在使用Elastic Nginx(https://github.com/rochacon/elastic-nginx),它负责在任何后端webapp服务器出现故障时保持Nginx内部的上游(IP)更新。我检查过上游并看到每个webapp服务器有2个条目,所以看起来没问题。
Nginx配置:
nginx版本:nginx / 1.6.2由gcc 4.8.2 20140120构建(Red Hat 4.8.2-16)(GCC)启用TLS SNI支持配置参数: - prefix = / usr / share / nginx --sbin-path = / usr / sbin / nginx --conf-path = / etc / nginx / nginx .conf --error-log-path = / var / log / nginx / error.log --http-log-path = / var / log / nginx / access.log --http-client-body-temp-path = / var / lib / nginx / tmp / client_body --http-proxy-temp-path = / var / lib / nginx / tmp / proxy --http-fastcgi-temp-path = / var / lib / nginx / tmp / fastcgi --http-uwsgi-temp-path = / var / lib / nginx / tmp / uwsgi --http-scgi-temp-path = / var / lib / nginx / tmp / scgi --pid-path = / var / run /nginx.pid --lock-path = / var / lock / subsys / nginx --user = nginx --group = nginx --with-file-aio --with-ipv6 --with-http_ssl_module --with-http_spdy_module --with-http_realip_module --with-http_ads_module --with-http_xmagelt_module --with-http_image_filter_module --with-http_geoip_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_modul e --with-http_degradation_module --with-http_stub_status_module --with-http_perl_module --with-mail --with-mail_ssl_module --with-pcre --with-google_perftools_module --with-debug --with-cc-opt =' -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE = 2 -fexceptions -fstack-protector -param = ssp-buffer-size = 4 -m64 -mtune = generic'--with-ld-opt ='-Wl ,-E'
Nginx.conf
user nginx;
worker_processes 22;
pid /var/run/nginx.pid;
events {
worker_connections 768;
# multi_accept on;
}
http {
##
# Basic Settings
##
sendfile off;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
client_max_body_size 15M;
# server_tokens off;
# server_names_hash_bucket_size 64;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
gzip_disable "msie6";
# gzip_vary on;
# gzip_proxied any;
# gzip_comp_level 6;
# gzip_buffers 16 8k;
# gzip_http_version 1.1;
# gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
##
# nginx-naxsi config
##
# Uncomment it if you installed nginx-naxsi
##
#include /etc/nginx/naxsi_core.rules;
##
# nginx-passenger config
##
# Uncomment it if you installed nginx-passenger
##
#passenger_root /usr;
#passenger_ruby /usr/bin/ruby;
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
#upstream backend {
# server 128.199.57.231;
# server 104.236.50.190;
# server 10.0.0.3:80;
#}
#server {
# listen 80;
#location / {
# proxy_pass http://backend;
# }
# }
}