We are using a Redash AMI hosted on an ec2 instance, and suddenly while executing a query our instance got crashed, After rebooting the instance the Redash server was up and running but now while running queries we started getting this could not send SSL negotiation packet: Resource temporarily unavailable error.
We tried connecting the database from the instance using psql command but it is also not working.
We have checked the security groups of the RDS - PSQL, it already have the IP whitelisted of redash instance.
It would be great if someone can help us in fixing the problem.
This was resolved. I had to whitelist the private IP of the Redash instance to the rds security group.