当入行压力测试时出现下列错误

[root@zabbix ~]# ab -n 3000 -c 3000 http://192.168.0.2/

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 192.168.0.2 (be patient)

socket: Too many open files (24)

解决方法：

查看当前要以打开的文件个数

[root@zabbix ~]# ulimit -a

core file size          (blocks, -c) 0data seg size           (kbytes, -d) unlimitedscheduling priority             (-e) 0file size               (blocks, -f) unlimitedpending signals                 (-i) 14802max locked memory       (kbytes, -l) 64max memory size         (kbytes, -m) unlimitedopen files                      (-n) 1024pipe size            (512 bytes, -p) 8POSIX message queues     (bytes, -q) 819200real-time priority              (-r) 0stack size              (kbytes, -s) 10240cpu time               (seconds, -t) unlimitedmax user processes              (-u) 14802virtual memory          (kbytes, -v) unlimitedfile locks                      (-x) unlimited

调整可以打开的文件数

[root@zabbix ~]# ulimit -n 65535

重新执行该命令

[root@zabbix ~]# ab -n 3000 -c 3000 http://192.168.0.2/

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 192.168.0.2 (be patient)

Completed 300 requestsCompleted 600 requestsCompleted 900 requestsCompleted 1200 requestsCompleted 1500 requestsCompleted 1800 requestsCompleted 2100 requestsCompleted 2400 requestsCompleted 2700 requestsCompleted 3000 requestsFinished 3000 requests

Server Software:        Apache/2.2.15Server Hostname:        192.168.0.2Server Port:            80

Document Path:          /

Document Length:        3985 bytes

Concurrency Level:      3000

Time taken for tests:   4.034 secondsComplete requests:      3000Failed requests:        0Write errors:           0Non-2xx responses:      3001Total transferred:      12554896 bytesHTML transferred:       11957697 bytesRequests per second:    743.75 [#/sec] (mean)Time per request:       4033.602 [ms] (mean)Time per request:       1.345 [ms] (mean, across all concurrent requests)Transfer rate:          3039.63 [Kbytes/sec] received

Connection Times (ms)

              min  mean[+/-sd] median   maxConnect:        0  553 995.8      2    3061Processing:    23  284 308.2    159    3235Waiting:       22  280 308.1    156    3235Total:         95  837 1149.6    198    3809

Percentage of the requests served within a certain time (ms)

  50%    198  66%    394  75%   1134  80%   1347  90%   3333  95%   3696  98%   3788  99%   3795 100%   3809 (longest request)

问题解决