I have setup my own private instance and followed Michael Klepikov’s demo to setup automatically importing performance data at the end of my Selenium tests. Now if the tests are around 3 minutes or less I have no problems and everything works a treat but if they are more, sometimes I have tests lasting 4 - 5 mins then all I see is
“First View: Test Data Missing”
When viewing the imported report, I don’t receive any errors during the import and it appears to have worked correctly except the data is missing.
The WebPagetest agent is probably trying to upload too large files - over the default limit. See this troubleshooting guide which says “Change upload_max_filesize and post_max_filesize to larger values in php.ini.” for the server config. If you are using nginx, the setting is client_max_body_size, for example:
client_max_body_size = 10M;
If this doesn’t fix the issue, you can still take a look at the server logs for clues. Are you trying to run a scripted test?