Class QueryLocationInfo

be/src/service/impala-server.h:1544–1556

  /// Entries in the 'query_locations' map.
  struct QueryLocationInfo {
    QueryLocationInfo(NetworkAddressPB address, TUniqueId query_id)
      : address(std::move(address)) {
      query_ids.insert(std::move(query_id));
    }

    /// Used for logging and error messages so that users don't have to translate between
    /// the BackendIdPB and a hostname themselves.
    NetworkAddressPB address;

    /// Queries currently running or expected to run at this location.
    std::unordered_set<TUniqueId> query_ids;
  };

  /// Contains info about what queries are running on each backend, so that they can be
  /// cancelled if the backend goes down.