TrackerNet live tube data InsufficientMemoryException


#1

The TrackerNet live tube API is currently returning an ASP.NET InsufficientMemoryException error page.

e.g. requesting central line: http://cloud.tfl.gov.uk/trackernet/predictionsummary/C

We’ve seen this kind of instability on and off this past week. Hopefully someone can fix it. Some more error details:

“Exception Details: System.InsufficientMemoryException: Memory gates checking failed because the free memory (55865344 bytes) is less than 5% of total memory. As a result, the service will not be available for incoming requests. To resolve this, either reduce the load on the machine or adjust the value of minFreeMemoryPercentageToActivateService on the serviceHostingEnvironment config element.”


#2

The InsufficientMemoryException seems to be resolved / gone away

Because we’re polling this API and receiving emailed error messages when it goes wrong, I can tell you that there is still something wrong. It’s a more subtle intermittent XML truncation problem, which we’ve seen for periods before, and which is still occurring at the moment.

I can give more details but… well let me know if anyone is reading this


#3

Yes, I have also seen this happen, and the out of memory issue affects me too. I’ve had an error in my code that results in a null response from time to time, and I worked out last night it was due to this issue.

Very frustrating.