Did you ever find a resolution to this error? I am actually receiving the same error currently.
anybody else got this error ?
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this is bad gateway error,
it comes when you databases sever unable to make connection with tableau
let me clarify it in a easy way. when u make connection, tableau connects with the data base and bases on what u do in tableau, it fires a query to database and fetch result..this is done by DB drivers.
so when this connection fails means tableau makes a request to db server and in return it get bad response then only you see this error..
Resolution:- refresh the connection-> go to live-> and then to extract-> save extract again..that i hope you will not got this error again