@Override
    public boolean equals(Object o) {
        if (o == this) return true;
        if ( ! (o instanceof Status)) return false;
        Status other = (Status)o;
        if ( other.currentReadShare != this.currentReadShare) return false;
        if ( other.maxReadShare != this.maxReadShare) return false;
        return true;
    }
Returns an estimate of the max fraction of the global traffic to this application that may possibly
be received by the deployment in this zone.
node-repository/src/main/java/com/yahoo/vespa/hosted/provision/applications/Status.java