nginx做代理，后端tomcat响应时间很快，但nginx的响应时间很慢

2014-10-27 04:58:36 2.5万阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Nginx+Tomcat负载均衡、动静分离集群一.Nginx负载均衡实现原理 Nginx实现负载均衡是通过反向代理实现 2、反向代理的概念反向代理（Reverse Proxy）方式是指以代理服务器来接受internet上的连接请求，然后将请求转发给内部网络上的服务器，并将从服务器上得到的结果返回给internet上请求连接的客户端，此时代理服务器对外就表现为一个反向代理服务器。反向代理是为服务端服务的，反向代理可以帮助服务器接收来自客户端的请求，帮助服务器做请求转发，负载均衡等。反向代理对服务端是透明的，对我们是非透明的，即我. 阅读详情

1，网站用nginx做前端代理，动态请求指向后端的tomcat，tomcat的响应时间为0.005秒，nginx响应为60.006秒。
2，此时捕捉到的nginx tcp:
TIME_WAIT 2992
SYN_SENT 2
FIN_WAIT1 55
ESTABLISHED 356
FIN_WAIT2 433
SYN_RECV 7
CLOSING 1
LAST_ACK 13
表明 nginx连接没有问题
3，nginx的buffer配置proxy_ignore_client_abort on;
client_header_buffer_size 128k;
large_client_header_buffers 4 128k;
proxy_buffer_size 32k;
proxy_buffers 50 64k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 128k;
4，系统已经做了/etc/sysctl.conf优化
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 90
net.ipv4.tcp_keepalive_probes = 2
net.ipv4.tcp_keepalive_intvl = 2

5，nginx.conf 中 keepalive_timeout 65;

...全文

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u010570150

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切换为时间正序

kidkissed 2017-05-22

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请求头，响应头有问题把，配置下就OK了

oaoutoaout 2017-02-20

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[root@local senginx]# ps aux|grep "nginx: worker process" | awk '{print $1}' nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody nobody root [root@local senginx]# 你好，我这边执行出来有很多行，其中最后一个是root用户，适用于你说的情况吗？

happyboygd 2015-10-19

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解决办法是： ps aux | grep "nginx: worker process" | awk '{print $1}' 如果得到结果是root的话，那就改一下proxy_temp的权限 chown -R root:root proxy_temp 如果结果是www 那就chown -R www:www proxy_temp

u010570150 2014-11-04

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不设缓冲，也不行

u010570150 2014-11-04

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actually，we use single-one at first, as PV becomming more , then we use the balance.

u010570150 2014-10-30

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Our proxy configure is very easy. upstream tomcat{ server IPaddress1:8088; server IPaddress2:8088; ip_hash; } location / { index index.jsp; proxy_pass http://tomcat;

小笨和漂向北方 2014-10-30

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引用 7 楼 u010570150 的回复:

Our proxy configure is very easy. upstream tomcat{ server IPaddress1:8088; server IPaddress2:8088; ip_hash; } location / { index index.jsp; proxy_pass http://tomcat;

you are right, it's quite simple and plain config...Have you tried to disable the load balancing and see if that makes any difference?

过去的我 2014-10-30

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不要设置缓存。试试。

小笨和漂向北方 2014-10-29

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引用 5 楼 u010570150 的回复:

worker_processes 8; worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000; error_log logs/error.log info; pid logs/nginx.pid; events { use epoll; worker_connections 32768; } http { include mime.types; default_type application/octet-stream; charset utf-8; include proxy_tomcat.conf; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for" "$request_time" '; access_log logs/access.log main; sendfile on; tcp_nopush on; tcp_nodelay on; server_tokens off; proxy_ignore_client_abort on; client_header_buffer_size 128k; large_client_header_buffers 4 128k; keepalive_timeout 5; gzip on; gzip_min_length 1k; gzip_buffers 4 16k; gzip_http_version 1.0; gzip_comp_level 2; gzip_types text/plain application/x-javascript text/css application/xml image/jpeg image/gif image/png; gzip_vary on; gzip_disable "MSIE [1-6]\.";

these are all global configuration, where is the section for the proxy setup?

u010570150 2014-10-29

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worker_processes 8; worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000; error_log logs/error.log info; pid logs/nginx.pid; events { use epoll; worker_connections 32768; } http { include mime.types; default_type application/octet-stream; charset utf-8; include proxy_tomcat.conf; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for" "$request_time" '; access_log logs/access.log main; sendfile on; tcp_nopush on; tcp_nodelay on; server_tokens off; proxy_ignore_client_abort on; client_header_buffer_size 128k; large_client_header_buffers 4 128k; keepalive_timeout 5; gzip on; gzip_min_length 1k; gzip_buffers 4 16k; gzip_http_version 1.0; gzip_comp_level 2; gzip_types text/plain application/x-javascript text/css application/xml image/jpeg image/gif image/png; gzip_vary on; gzip_disable "MSIE [1-6]\.";

小笨和漂向北方 2014-10-28

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引用 3 楼 u010570150 的回复:

If anyone who could help us,if he need, we can share our Web Server's configure with him.

post ur nginx.conf

u010570150 2014-10-28

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If anyone who could help us,if he need, we can share our Web Server's configure with him.

u010570150 2014-10-28

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用的是nginx日志和tomcat的日志记录，request_time

小笨和漂向北方 2014-10-27

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how did you catch the response time info? tcpdump?

nginx做代理，后端tomcat响应时间很快，但nginx的响应时间很慢

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