Endpoint for schedulers to make calls against the master.
Returns 202 Accepted iff the request is accepted.
Returns 307 TEMPORARY_REDIRECT redirect to the leading master when current master is not the leader.
Returns 503 SERVICE_UNAVAILABLE if the leading master cannot be found.
This endpoint requires authentication iff HTTP authentication is enabled.
The returned frameworks information might be filtered based on the users authorization. See the authorization documentation for details.