How to scrape all metrics from a federate endpoint? : <p>We have a hierachical prometheus setup with some server scraping others.
We'd like to have some servers scrape all metrics from others.</p>

<p>Currently we try to use <code>match[]="{__name__=~".*"}"</code> as a metric selector, but this gives the error <code>parse error at char 16: vector selector must contain at least one non-empty matcher</code>.</p>

<p>Is there a way to scrape all metrics from a remote prometheus without listing each (prefix) as a match selector?</p>
