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标题: 关于apache自带的ab做并发测试的问题。 [打印本页]
作者: 测试积点老人    时间: 2019-7-17 09:57
标题: 关于apache自带的ab做并发测试的问题。
各位高手，大家好，
   我现在这边有个棘手的问题需要解决，需要大家慷慨解囊。
   问题是这样的，我使用ab来做并发测试，看具体的并发数和相应时间。
   当我使用ab  -n 10000  -c 2000 http://192.168.1.123:8080/test/test.html.
   系统报错；
  1. This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 [        DISCUZ_CODE_10        ]gt; apache-2.0
  2.    Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
  3.    Copyright 1997-2005 The Apache Software Foundation, http://www.apache.org/

  5.    Benchmarking 192.168.1.123 (be patient)
  6.    apr_pollset_create failed: Invalid argument (22)
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经过测试系统-c并发数请求超过1024就会报以上的错误。

   上网找过类似问题，说是配置一下操作系统的注册表，调整MaxUserPort十进制为32768，TcpTimedWaitDelay十进制为240
   重启系统，经过测试还是报同样的错误。

   类似的问题说apache 的httpd.conf，启用httpd-mpm.conf ,并配置httpd-mpm.conf 如下：
  1. #
  2. # Server-Pool Management (MPM specific)
  3. #

  5. #
  6. # PidFile: The file in which the server should record its process
  7. # identification number when it starts.
  8. #
  9. # Note that this is the default PidFile for most MPMs.
  10. #
  11. <IfModule !mpm_netware_module>
  12.     PidFile "logs/httpd.pid"
  13. </IfModule>

  15. #
  16. # The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
  17. #
  18. <IfModule !mpm_winnt_module>
  19. <IfModule !mpm_netware_module>
  20. LockFile "logs/accept.lock"
  21. </IfModule>
  22. </IfModule>

  24. #
  25. # Only one of the below sections will be relevant on your
  26. # installed httpd.  Use "apachectl -l" to find out the
  27. # active mpm.
  28. #

  30. # prefork MPM
  31. # StartServers: number of server processes to start
  32. # MinSpareServers: minimum number of server processes which are kept spare
  33. # MaxSpareServers: maximum number of server processes which are kept spare
  34. # MaxClients: maximum number of server processes allowed to start
  35. # MaxRequestsPerChild: maximum number of requests a server process serves
  36. <IfModule mpm_prefork_module>
  37.     StartServers          5
  38.     MinSpareServers       5
  39.     MaxSpareServers      10
  40.     ServerLimit        5500
  41.     MaxClients         5000
  42.     MaxRequestsPerChild 10000
  43. </IfModule>

  45. # worker MPM
  46. # StartServers: initial number of server processes to start
  47. # MaxClients: maximum number of simultaneous client connections
  48. # MinSpareThreads: minimum number of worker threads which are kept spare
  49. # MaxSpareThreads: maximum number of worker threads which are kept spare
  50. # ThreadsPerChild: constant number of worker threads in each server process
  51. # MaxRequestsPerChild: maximum number of requests a server process serves
  52. <IfModule mpm_worker_module>
  53.     StartServers          3
  54.     ServerLimit         5500
  55.     MaxClients          5000
  56.     MinSpareThreads      50
  57.     MaxSpareThreads      200
  58.     ThreadLimit          200
  59.     ThreadsPerChild      100
  60.     MaxRequestsPerChild  10000
  61. </IfModule>

  63. # BeOS MPM
  64. # StartThreads: how many threads do we initially spawn?
  65. # MaxClients:   max number of threads we can have (1 thread == 1 client)
  66. # MaxRequestsPerThread: maximum number of requests each thread will process
  67. <IfModule mpm_beos_module>
  68.     StartThreads            10
  69.     MaxClients             5000
  70.     MaxRequestsPerThread 10000
  71. </IfModule>

  73. # NetWare MPM
  74. # ThreadStackSize: Stack size allocated for each worker thread
  75. # StartThreads: Number of worker threads launched at server startup
  76. # MinSpareThreads: Minimum number of idle threads, to handle request spikes
  77. # MaxSpareThreads: Maximum number of idle threads
  78. # MaxThreads: Maximum number of worker threads alive at the same time
  79. # MaxRequestsPerChild: Maximum  number of requests a thread serves. It is
  80. #                      recommended that the default value of 0 be set for this
  81. #                      directive on NetWare.  This will allow the thread to
  82. #                      continue to service requests indefinitely.                          
  83. <IfModule mpm_netware_module>
  84.     ThreadStackSize      65536
  85.     StartThreads           250
  86.     MinSpareThreads         25
  87.     MaxSpareThreads        250
  88.     MaxThreads            2000
  89.     MaxRequestsPerChild      0
  90.     MaxMemFree             100
  91. </IfModule>

  93. # OS/2 MPM
  94. # StartServers: Number of server processes to maintain
  95. # MinSpareThreads: Minimum number of idle threads per process,
  96. #                  to handle request spikes
  97. # MaxSpareThreads: Maximum number of idle threads per process
  98. # MaxRequestsPerChild: Maximum number of connections per server process
  99. <IfModule mpm_mpmt_os2_module>
  100.     StartServers           2
  101.     MinSpareThreads        5
  102.     MaxSpareThreads       10
  103.     MaxRequestsPerChild    0
  104. </IfModule>

  106. # WinNT MPM
  107. # ThreadsPerChild: constant number of worker threads in the server process
  108. # MaxRequestsPerChild: maximum  number of requests a server process serves
  109. <IfModule mpm_winnt_module>
  110.     ThreadsPerChild      2000
  111.     MaxRequestsPerChild  10000
  112. </IfModule>
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配置完，重启服务，经过测试，还是报一样的错误。

   试配置一下在tomcat的server.xml 中，把maxThreads改为2000，具体配置如下：
  1. <Connector port="8080" maxHttpHeaderSize="8192"
  2.                maxThreads="2000" minSpareThreads="25" maxSpareThreads="75"
  3.                enableLookups="false" redirectPort="8443" acceptCount="100"
  4.                connectionTimeout="20000" disableUploadTimeout="true"  URIEncoding="utf-8"/>
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还是报一样的错误。
我测试的客户端电脑的配置如下：
   CPU T2130 1.86GHz 1.06Ghz ,内存2.49GB  
   
   测试系统部署tomcat服务器的配置分别如下：
   cpu E3500 2.70GHz 2.70GHz 1.96GB

   CPU T2130 1.86GHz 1.06Ghz ,内存2.49GB  
     

   请高手指点迷津，我实在是测不出来了，呵呵！
作者: 海海豚    时间: 2019-7-19 09:18
https://blog.csdn.net/janfly79/article/details/54093900  参考下这个
作者: qqq911    时间: 2019-7-19 11:04
ulimit -a
作者: abcsell    时间: 2019-7-19 11:28
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作者: jingzizx    时间: 2019-7-19 13:00
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