1

Issue Summary

After upgrading from 8.0 to 10.1, I always get an undefined error
(Connection Test Failed: Unknown error occurred while performing connection test. Please try again later.) when trying to test any data source. Queries also don’t work. In my browser I get this response:

POST https:///api/data_sources/11/test: 502

Tested with data sources: Postges, Queries, CSV

Technical details:

  • Redash Version: 10.1.0 (2589bef1)
  • Browser/OS: Chrome 99.0.4844.84 / Windows 11
  • How did you install Redash: Installed with Digital Ocean Marketplace
2

It seems that the newer versions use more memory. When using 8.0.0 2GB of RAM was never an issue, but for 10.1.0 I had to upgrade to 4GB.

3

Yes that’s consistent with our testing. V10 requires more RAM because of the number of its python dependencies. We updated our recommended spec in the docs to a 4GB instance.