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[Private Instance AMI] - Run gets assigned but never happens
03-06-2018, 06:40 AM
Post: #1
[Private Instance AMI] - Run gets assigned but never happens
Hi All,

I've been having a go at setting up a WebPageTest private AMI instance to provide some performance bench-marking for our website.

I've got it running, however the tests sometimes don't run. When they don't run the following happens:

  • I make an API call
  • The controlling machine boots up a test instance
  • I continue to ping the API every 20 seconds for completion and it keeps recieving a 100 status
  • At some point in this process the test machine terminates (I checked in 49 minutes later), the test is still showing a 100 status
  • At some point WPT times out the test and forces it to complete.


Individual test log:
2018/03/05 19:16:27 - Test Created
2018/03/05 19:22:06 - Starting test (initiated by tester i-0e3931ee461b73553)
2018/03/05 19:22:06 - Run 1 assigned to i-0e3931ee461b73553
2018/03/05 20:35:22 - Test run 1 has been running for 73 minutes on i-0e3931ee461b73553, forcing done.
2018/03/05 20:35:22 - Test has been running for 73 minutes and it has been 100 since the last update, forcing the full test to finish.


This shows the test run, but I think it looks relatively innocuous.
2018-03-05 19:16:27     {ip_address}     0       0       180305_TP_4  US East (N. Virginia) - <b>Chrome</b> - <b>Cable</b>    0                       1               {unique_key1}        {unique_key2}        1

My set-up
  • webpagetest-server-2014-11-25 (ami-9978f6ee)
  • controller instance on t2.micro - EU Ireland
  • test instances haven't touched, so are running on m3.medium that the AMI scales by default
  • I have slow_test_time=200 in the settings, but I'm unsure where that logs to.

How can I debug this issue? I'm struggling with where to go next.
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[Private Instance AMI] - Run gets assigned but never happens - domdistilled - 03-06-2018 06:40 AM

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