Question

我有一个带有camel-jetty消费者的akka（Java）应用程序。在一些最小负载（大约10 TPS）下，我们的客户端开始看到HTTP 503错误。我试图在我们的实验室中重现这个问题，看起来jetty无法处理重叠的HTTP请求。以下是apache bench（ab）的输出：

ab使用一个线程发送10个请求（即一次一个请求）

ab -n 10 -c 1 -p bad.txt http://192.168.20.103:8899/pim

Benchmarking 192.168.20.103 (be patient).....done


Server Software:        Jetty(8.1.16.v20140903)
Server Hostname:        192.168.20.103
Server Port:            8899

Document Path:          /pim
Document Length:        33 bytes

Concurrency Level:      1
Time taken for tests:   0.61265 seconds
Complete requests:      10
Failed requests:        0

Requests per second:    163.23 [#/sec] (mean)
Time per request:       6.126 [ms] (mean)
Time per request:       6.126 [ms] (mean, across all concurrent requests)

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   1.0      1       2
Processing:     3    4   1.8      5       7
Waiting:        2    4   1.8      5       7
Total:          3    5   1.9      6       8

Percentage of the requests served within a certain time (ms)
  50%      6
  66%      6
  75%      6
  80%      8
  90%      8
  95%      8
  98%      8
  99%      8
  100%      8 (longest request)

ab使用两个线程发送10个请求（同时最多2个请求）：

ab -n 10 -c 2 -p bad.txt http://192.168.20.103:8899/pim


Benchmarking 192.168.20.103 (be patient).....done


Server Software:        Jetty(8.1.16.v20140903)
Server Hostname:        192.168.20.103
Server Port:            8899

Document Path:          /pim
Document Length:        33 bytes

Concurrency Level:      2
Time taken for tests:   30.24549 seconds
Complete requests:      10
Failed requests:        1
   (Connect: 0, Length: 1, Exceptions: 0)

// obmited for clarity


Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.9      1       2
Processing:     3 3005 9492.9      4   30023
Waiting:        2 3005 9492.7      3   30022
Total:          3 3006 9493.0      5   30024


Percentage of the requests served within a certain time (ms)
  50%      5
  66%      5
  75%      7
  80%      7
  90%  30024
  95%  30024
  98%  30024
  99%  30024
  100%  30024 (longest request)

我不相信码头这么糟糕。希望这只是一个配置问题。这是我的驼色消费者URI的设置：

"jetty:http://0.0.0.0:8899/pim?replyTimeout=70000&autoAck=false"

我正在使用akka 2.3.12和camel-jetty 2.15.2

Answer 1

Jetty肯定不是那么糟糕，应该能够处理成千上万的TPS连接成千上万的连接。

很难诊断你所说的，除了Jetty在加载时不发送503的内容......除非可能部署了拒绝服务保护过滤器？（并且ab看起来像是DOS攻击......它基本上是并且不是用于基准测试的强大负载生成器。）

所以你需要追踪发送503的原因和原因。

Answer 2

这是我的错误代码：发件人（客户端）信息被重叠请求覆盖。由于Jetty持续超时，发送了503错误消息。

加载时嵌入式Jetty超时

2 个答案: