<meta charset="utf-8"><span class="Apple-style-span" style="font-family: Times; font-size: medium; "><pre style="white-space: pre-wrap; ">> To me this looks like your backend does not answer inside the
> "first_byte" timeout.</pre><pre style="white-space: pre-wrap; ">That's what I initially thought, but the 503 is being generated within 1-2 seconds max of initiating the request, not the 30 seconds being defined in each backend. Am I misunderstanding the first_byte timeout setting?</pre>
<pre style="white-space: pre-wrap; ">--</pre><pre style="white-space: pre-wrap; ">Adam McManus</pre></span>