dawagner opened a new issue, #41745:
URL: https://github.com/apache/superset/issues/41745

   ### Bug description
   
   My users were reporting that dashboards were taking a long time to load. It 
seems that for each SQL query, Superset open a new SSH connection. That can be 
quite costly and can even trigger rate-limiting or rejection from the ssh 
server.
   
   I added a side-car container using autossh to my setup, removed tunneling 
from the database connection parameters and pointed the database connections to 
that container instead of the actual database. My "cache warmup" periodic task 
went from 10 minutes to 3 minutes and users report a day-and-night difference. 
In addition, the logs are much more readable now :)
   
   Could the tunneling implementation be improved by pooling the ssh connection 
across requests?
   
   (I'm using Superset 5.0.0 but I mentioned Superset 6.0.0 in the bug details 
because that was the closest available option)
   
   ### Screenshots/recordings
   
   _No response_
   
   ### Superset version
   
   6.0.0
   
   ### Python version
   
   I don't know
   
   ### Node version
   
   I don't know
   
   ### Browser
   
   Not applicable
   
   ### Additional context
   
   _No response_
   
   ### Checklist
   
   - [x] I have searched Superset docs and Slack and didn't find a solution to 
my problem.
   - [x] I have searched the GitHub issue tracker and didn't find a similar bug 
report.
   - [x] I have checked Superset's logs for errors and if I found a relevant 
Python stacktrace, I included it here as text in the "additional context" 
section.


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