calls to <code>ratings</code> to cause the
<code>reviews</code> service to take longer than half a second to complete and consequently you could see the timeout in action.</p><p>You observed that instead of displaying reviews, the Bookinfo product page (which calls the <code>reviews</code> service to populate the page) displayed
the message: Sorry, product reviews are currently unavailable for this book.
This was the result of it receiving the timeout error from the <code>reviews</code> service.</p><p>If yo