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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Thank you. This option
helped a lot. But varnish delivers still 503 errors when the backend is completely
down (no route to host, connection refused). Is there a way to handle such
situations too?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
Per Buer [mailto:perbu@varnish-software.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Montag, 29. November 2010
15:10<br>
<b><span style='font-weight:bold'>To:</span></b> Klapproth, Martin<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">varnish-misc@varnish-cache.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Send old content if
backend is down</span></font><span lang=EN-US><o:p></o:p></span></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Nov 29, 2010 at 3:01 PM, Klapproth, Martin <<a
href="mailto:Klapproth.M@sportresult.com">Klapproth.M@sportresult.com</a>>
wrote:<o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hello,</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>I
have a general question relating to varnish’s vcl configuration. I want the
varnish server to send old cached objects if the backend is down (marked
unhealthy). I have tested various grace configurations but nothing worked,
because grace takes only effect if the backend is slow, but not if it’s down. So
is there a way (maybe in vcl_error)?</span></font><o:p></o:p></p>
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</blockquote>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Yes. There is a way.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><a
href="http://www.varnish-cache.org/docs/trunk/tutorial/handling_misbehaving_servers.html#saint-mode">http://www.varnish-cache.org/docs/trunk/tutorial/handling_misbehaving_servers.html#saint-mode</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
-- <br>
Per Buer, Varnish Software<br>
Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / skype: per.buer<o:p></o:p></span></font></p>
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