Nginx配置两份日志记录

nginx配置
版本-1.4.4

access_log  /alidata/log/nginx/access/wordpress1.log  ;
access_log  /alidata/log/nginx/access/wordpress2.log  ;

压力测试，使用webbench测试

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Benchmarking: GET http://blog.miaojunrs.com/
50 clients, running 1200 sec.

Speed=94 pages/min, 62367 bytes/sec.
Requests: 1895 susceed, 0 failed.

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watch观察结果

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watch wc -l wordpress1.log wordpress2.log  #观察日志条数
root@iZ285ma471jZ:/alidata/log/nginx/access# diff wordpress1.log wordpress2.log#diff确认日志无差异
root@iZ285ma471jZ:/alidata/log/nginx/access#

Every 2.0s: wc -l wordpress1.log wordpress2.log Fri Jul 8 17:29:21 2016

1945 wordpress1.log
1945 wordpress2.log
3890 total

测试是可以双写的

使用新nginx验证
nginx version: nginx/1.5.13

ab 压力测试

[root@iZ285ma471jZ exception]# ab -n200000 -c2000 http://blog.miaojunrs.com/
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 blog.miaojunrs.com (be patient)
Completed 20000 requests
Completed 40000 requests
Completed 60000 requests
Completed 80000 requests
Completed 100000 requests
Completed 120000 requests
Completed 140000 requests
Completed 160000 requests
Completed 180000 requests
Completed 200000 requests
Finished 200000 requests


Server Software:
Server Hostname:        blog.miaojunrs.com
Server Port:            80

Document Path:          /
Document Length:        0 bytes

Concurrency Level:      2000
Time taken for tests:   17.949 seconds
Complete requests:      200000
Failed requests:        200276
   (Connect: 0, Receive: 0, Length: 187797, Exceptions: 12479)
Write errors:           0
Non-2xx responses:      188237
Total transferred:      59859366 bytes
HTML transferred:       30494394 bytes
Requests per second:    11142.99 [#/sec] (mean)
Time per request:       179.485 [ms] (mean)
Time per request:       0.090 [ms] (mean, across all concurrent requests)
Transfer rate:          3256.90 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       13   90  78.3     88    1106
Processing:    18   89  23.9     92     166
Waiting:        0   64  24.9     69     135
Total:         42  178  84.2    180    1231

Percentage of the requests served within a certain time (ms)
  50%    180
  66%    192
  75%    200
  80%    204
  90%    214
  95%    223
  98%    236
  99%    245
 100%   1231 (longest request)
[root@iZ285ma471jZ exception]#

diff测试日志无差异

[root@iZ285ma471jZ exception]# diff /tmp/1.log /tmp/2.log
[root@iZ285ma471jZ exception]# wc -l /tmp/1.log  /tmp/2.log
  190238 /tmp/1.log
  190238 /tmp/2.log
  380476 总用量