Chart get's a timeout - how to debug?

Hello @tomhollander

I like to take complexity out of this question. The core problem is as follows:

  • there is a brand new empty chart
  • I chose one specify collection to from the data sources to work with
  • the sampling starts
  • I get a timeout (as shown in the initial post)

In case I switch on the sample mode the sampling is reduces to 1000 documents (I assume) and this passes the sampling finishes with no error. But what ever I do I can not switch off the sampling mode with out getting a timeout. So I never can run any query against the full dataset.

I want now to understand what’s the reason for the timeout while sampling. Other (small) collections work fine. So I assume it is data/schema related, the profiler is switched on bit I do not see any specific spike. I would expect this since the timeout seems to be 90 sec.

Any thoughts, hints on that?

Michael