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</head><body text="#000000" bgcolor="#FFFFFF"><a class="moz-txt-link-freetext" href="http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_use_stale">http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_use_stale</a><br>
<br>
You can use multiple values e.g. the below is probably a good start:<br>
<br>
proxy_cache_use_stale error timeout invalid_header updating;<br>
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<blockquote style="border: 0px none;"
cite="mid:CACW9FdNG3hMXPehzj4UAuiRAcFrM-BnMRq4cXiZnGc+KTPwpjg@mail.gmail.com"
type="cite">
<div style="margin:30px 25px 10px 25px;" class="__pbConvHr"><div
style="display:table;width:100%;border-top:1px solid
#EDEEF0;padding-top:5px"> <div
style="display:table-cell;white-space:nowrap;vertical-align:middle;width:100%">
<a moz-do-not-send="true" href="mailto:cherian.in@gmail.com"
style="color:#737F92
!important;padding-right:6px;font-weight:bold;text-decoration:none
!important;">Cherian Thomas</a></div> <div
style="display:table-cell;white-space:nowrap;vertical-align:middle;">
<font color="#9FA2A5"><span style="padding-left:6px">30 Jun 2015 03:27</span></font></div>
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<div style="color:#888888;margin-left:24px;margin-right:24px;"
__pbrmquotes="true" class="__pbConvBody"><div dir="ltr"><div
style="font-family:arial,helvetica,sans-serif;color:rgb(0,0,0)"
class="gmail_default">
<p class="">Is it possible to configure Nginx to serve from cache even
when the origin server is not accessible? </p>
<p class="">I am trying to figure out if I can use a replicated Nginx
instance that has cache files rsynced (<a moz-do-not-send="true"
href="http://t.sidekickopen03.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJW7t5XYg1qwrMlW63Bdqv8rBw8YW4XXPpC56dBXDf1zVF0j02?t=https%3A%2F%2Fcode.google.com%2Fp%2Flsyncd%2F&si=6435350837723136&pi=2518a249-a8f4-4dd6-9e96-783723ac8e1a">lsyncd</a>)
from the primary instance and serve from the replicated instance (DNS
switch) if the primary goes down. </p>
</div><div><div class="gmail_signature"><div dir="ltr"><table
style="font-size:12px;font-family:Helvetica,Arial,sans-serif"
width="400" cellpadding="0" cellspacing="0"><tbody><tr><td colspan="2">-
Cherian</td></tr></tbody></table></div></div></div>
<img moz-do-not-send="true" style="display:none!important"
src="http://t.sidekickopen03.com/e1t/o/5/f18dQhb0S7ks8dDMPbW2n0x6l2B9gXrN7sKj6v4LCRqN653n6vRYQknW2BFV2z3LvrVvW1d-MDn1k1H6H0?si=6435350837723136&pi=2518a249-a8f4-4dd6-9e96-783723ac8e1a"
height="1" width="1"></div>
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