我在c1.medium实例上运行nginx和龙卷风。
当我运行ab时，下面是我的输出。 Nginx不会工作。 我试图调整NINX的configuration文件无济于事。 如果我通过传递nginx如“只运行在一个端口上
http://127.0.0.1:8050/pixel?tt=ff` 那么其速度。 看到底部。 这必须是一个nginx问题，所以我该如何解决？ 下面还有nginx的conf文件。
root@ip-10-130-167-230:/etc/service# ab -n 10000 -c 50 http://127.0.0.1/pixel?tt=ff This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking 127.0.0.1 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests apr_socket_recv: Connection reset by peer (104) Total of 9100 requests completed
这应该吸烟，但它没有。
我设置了以下parmamerts
ulimit is at 100000 # General gigabit tuning: net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.ipv4.tcp_syncookies = 1 # this gives the kernel more memory for tcp # which you need with many (100k+) open socket connections net.ipv4.tcp_mem = 50576 64768 98152 net.core.netdev_max_backlog = 2500
这是我的nginx conf：
user www-data; worker_processes 1; # 2*number of cpus pid /var/run/nginx.pid; worker_rlimit_nofile 32768; events { worker_connections 30000; multi_accept on; use epoll; } http { upstream frontends { server 127.0.0.1:8050; server 127.0.0.1:8051; } sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; # server_tokens off; # server_names_hash_bucket_size 64; # server_name_in_redirect off; include /etc/nginx/mime.types; default_type application/octet-stream; # Only retry if there was a communication error, not a timeout # on the Tornado server (to avoid propagating "queries of death" # to all frontends) proxy_next_upstream error; server { listen 80; server_name 127.0.0.1; ##For tornado location / { proxy_pass_header Server; proxy_set_header Host $http_host; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Scheme $scheme; proxy_pass http://frontends; }
如果我通过传递nginx运行ab：
ab -n 100000 -c 1000 http://127.0.0.1:8050/pixel?tt=ff root@ip-10-130-167-230:/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbTornadoServer# ab -n 100000 -c 1000 http://127.0.0.1:8050/pixel?tt=ff This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking 127.0.0.1 (be patient) Completed 10000 requests Completed 20000 requests Completed 30000 requests Completed 40000 requests Completed 50000 requests Completed 60000 requests Completed 70000 requests Completed 80000 requests Completed 90000 requests Completed 100000 requests Finished 100000 requests Server Software: TornadoServer/2.2.1 Server Hostname: 127.0.0.1 Server Port: 8050 Document Path: /pixel?tt=ff Document Length: 42 bytes Concurrency Level: 1000 Time taken for tests: 52.436 seconds Complete requests: 100000 Failed requests: 0 Write errors: 0 Total transferred: 31200000 bytes HTML transferred: 4200000 bytes Requests per second: 1907.08 [#/sec] (mean) Time per request: 524.363 [ms] (mean) Time per request: 0.524 [ms] (mean, across all concurrent requests) Transfer rate: 581.06 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 411 1821.7 0 21104 Processing: 23 78 121.2 65 5368 Waiting: 22 78 121.2 65 5368 Total: 53 489 1845.0 65 23230 Percentage of the requests served within a certain time (ms) 50% 65 66% 69 75% 78 80% 86 90% 137 95% 3078 98% 3327 99% 9094 100% 23230 (longest request) 2012/05/16 20:48:32 [error] 25111#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8051/", host: "127.0.0.1" 2012/05/16 20:48:32 [error] 25111#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8050/", host: "127.0.0.1" 2012/05/16 20:53:48 [error] 28905#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8051/", host: "127.0.0.1" 2012/05/16 20:53:48 [error] 28905#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8050/", host: "127.0.0.1" 2012/05/16 20:55:35 [error] 30180#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8051/", host: "127.0.0.1" 2012/05/16 20:55:35 [error] 30180#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8050/", host: "127.0.0.1"
在ab上使用-v 10选项时为Oupput：
GIF89a LOG: Response code = 200 LOG: header received: HTTP/1.1 200 OK Date: Wed, 16 May 2012 21:56:50 GMT Content-Type: image/gif Content-Length: 42 Connection: close Etag: "d5fceb6532643d0d84ffe09c40c481ecdf59e15a" Server: TornadoServer/2.2.1 Set-Cookie: rtbhui=867bccde-2bc0-4518-b422-8673e07e19f6; Domain=rtb.rtbhui.com; expires=Fri, 16 May 2014 21:56:50 GMT; Path=/
我在使用webrick的sinatra应用程序上使用apache基准测试也遇到同样的问题。 我在这里找到了答案。
它实际上是你的Apache服务器的问题。
该bug已经被更高版本的apache删除。 尝试在这里下载它们。
我有同样的问题，并在日志中寻找信息我得到这样的线路：
Oct 15 10:41:30 bal1 kernel: [1031008.706185] nf_conntrack: table full, dropping packet. Oct 15 10:41:31 bal1 kernel: [1031009.757069] nf_conntrack: table full, dropping packet. Oct 15 10:41:32 bal1 kernel: [1031009.939489] nf_conntrack: table full, dropping packet. Oct 15 10:41:32 bal1 kernel: [1031010.255115] nf_conntrack: table full, dropping packet.
在我的情况下，conntrack模块是在iptables里面使用的，因为同一个服务器有防火墙。
一个解决方案是卸载conntrack模块，另外一个简单的方法是将这两行应用到防火墙策略中：
iptables -t raw -I PREROUTING -p tcp -j NOTRACK iptables -t raw -I OUTPUT -p tcp -j NOTRACK