Starting after an update from v7.9.13 > 8.0.13 I am having a lot of problems with WebDev. We have a lot of equipment that posts a series of key/values and also a text file to a WebDev endpoint which Ignition then processes and disperses into tags representing the detailed status of the equipment from the text file.
INFO | jvm 1 | 2020/05/28 20:13:58 | W [o.e.j.s.HttpChannel ] [00:13:58]: handleException /main/system/webdev/EagleLoader/status/ java.io.IOException: org.eclipse.jetty.http.BadMessageException: 500: Response header too large
and…
INFO | jvm 1 | 2020/05/28 20:16:00 | W [o.e.j.s.HttpChannel ] [00:16:00]: handleException /main/system/webdev/EagleLoader/status/ org.eclipse.jetty.http.BadMessageException: 400: Unable to parse form content
For this one I tried support first actually... took a week to get the below reply
For support with the Web dev module, we will need you to post in the Forums for assistance with troubleshooting. The web dev module is outside the scope of the support team, however, the developers monitor and advise with web dev issues via the forums. I apologize for the inconvenience. Thank you.
Many are small, few dozen lines, but occasionally can be large up to a few MB. Im seeing even small ones fail. I can get prob get some system time over so I can inspect the requests in more detail.
In 7 I had already increased the post size in Ignition config file. But it still seemed odd jetty is having issues in 8.