Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [jetty-users] Jetty blocks and times out repeatably under load
Hmm....looks like it is. Got the same result with Tomcat 7.

Any other Mac users out there experiencing lockups/timeouts when hitting a web server rapidly via the loopback adapter?


On 18 June 2013 22:19, Joakim Erdfelt <joakim@xxxxxxxxxxx> wrote:
It something with your machine.

$ ab -c 1 -n 20000 http://localhost:8080/
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 localhost (be patient)
Completed 2000 requests
Completed 4000 requests
Completed 6000 requests
Completed 8000 requests
Completed 10000 requests
Completed 12000 requests
Completed 14000 requests
Completed 16000 requests
Completed 18000 requests
Completed 20000 requests
Finished 20000 requests


Server Software:        Jetty(9.0.3.v20130506)
Server Hostname:        localhost
Server Port:            8080

Document Path:          /
Document Length:        2775 bytes

Concurrency Level:      1
Time taken for tests:   10.146 seconds
Complete requests:      20000
Failed requests:        0
Write errors:           0
Total transferred:      60800000 bytes
HTML transferred:       55500000 bytes
Requests per second:    1971.14 [#/sec] (mean)
Time per request:       0.507 [ms] (mean)
Time per request:       0.507 [ms] (mean, across all concurrent requests)
Transfer rate:          5851.81 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.0      0       0
Processing:     0    0   0.6      0      48
Waiting:        0    0   0.6      0      47
Total:          0    0   0.6      0      48

Percentage of the requests served within a certain time (ms)
  50%      0
  66%      1
  75%      1
  80%      1
  90%      1
  95%      1
  98%      1
  99%      2
 100%     48 (longest request)


:: And ::

$ ab -c 1 -n 20000 http://localhost:8080/
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 localhost (be patient)
Completed 2000 requests
Completed 4000 requests
Completed 6000 requests
Completed 8000 requests
Completed 10000 requests
Completed 12000 requests
Completed 14000 requests
Completed 16000 requests
Completed 18000 requests
Completed 20000 requests
Finished 20000 requests


Server Software:        Jetty(8.1.9.v20130131)
Server Hostname:        localhost
Server Port:            8080

Document Path:          /
Document Length:        2239 bytes

Concurrency Level:      1
Time taken for tests:   9.106 seconds
Complete requests:      20000
Failed requests:        0
Write errors:           0
Total transferred:      48840000 bytes
HTML transferred:       44780000 bytes
Requests per second:    2196.30 [#/sec] (mean)
Time per request:       0.455 [ms] (mean)
Time per request:       0.455 [ms] (mean, across all concurrent requests)
Transfer rate:          5237.67 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.0      0       0
Processing:     0    0   0.7      0      59
Waiting:        0    0   0.7      0      59
Total:          0    0   0.7      0      59

Percentage of the requests served within a certain time (ms)
  50%      0
  66%      0
  75%      1
  80%      1
  90%      1
  95%      1
  98%      1
  99%      1
 100%     59 (longest request)



--
Joakim Erdfelt <joakim@xxxxxxxxxxx>
Developer advice, services and support
from the Jetty & CometD experts


On Tue, Jun 18, 2013 at 2:14 PM, Tom Akehurst <t.m.akehurst@xxxxxxxxxxxxxx> wrote:
Hi,

I'm having an issue with the Jetty server whereby throwing rapid (single threaded) GETs at the root URL results in it locking up then timing out at ~16380 requests. I've tried this in versions 6.1.16, 8.1.5.v20120716 and 9.0.3.v20130506, all with identical results. In each case I tested with a vanilla install of Jetty with no code deployed and no configuration changed other than port numbers.

Here is my Apache Bench output for versions 8:

$ ab -c 1 -n 20000 http://localhost:8091/
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 localhost (be patient)
Completed 2000 requests
Completed 4000 requests
Completed 6000 requests
Completed 8000 requests
Completed 10000 requests
Completed 12000 requests
Completed 14000 requests
Completed 16000 requests
apr_socket_recv: Operation timed out (60)
Total of 16378 requests completed

and version 9:
$ ab -c 1 -n 20000 http://localhost:8080/
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 localhost (be patient)
Completed 2000 requests
Completed 4000 requests
Completed 6000 requests
Completed 8000 requests
Completed 10000 requests
Completed 12000 requests
Completed 14000 requests
Completed 16000 requests
apr_socket_recv: Operation timed out (60)
Total of 16380 requests completed

I'm running a 2010 MacBook Pro i5 and I've run this test on Snow Leopard and Mountain Lion. I've also seen evidence of this problem on a colleague's Windows 7 laptop.

Has anyone else ever seen this?

Thanks,
Tom

_______________________________________________
jetty-users mailing list
jetty-users@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/jetty-users



_______________________________________________
jetty-users mailing list
jetty-users@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/jetty-users


Back to the top