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varnish 503s when accessing backend

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http://serverfault.com – I have two backends that I'm serving on my web server, both of them are remotely hosted by third party companies. One of them is a support portal page, which is passing cookies and I suspect is causing the page to not load. I see varnish pass the request along to the backend, but when the request hits the backend I see the following response: 14 FetchError c http read error: 0 15 BackendClose b support 14 VCL_call c error Details of my VCL settings, runtime parameters and full log output can be found on my gist page: https://gist.github.com/4321241. Is there something that's not allow (HowTos)

grtyyu's picture
Submitted by grtyyu on 12/18/2012

Stories similar to varnish 503s when accessing backend

Ever since updating to core/dbus from dbus-core, my desktop environments and various programs are broken. I have a variety of logs that people on IRC asked for.

Every time I attempt to add an extra back end into our VCL file, it's fails.

Here is the DAEMON_OPTS we are running off:

DAEMON_OPTS="-a :80 \ -T localhost:6082 \ -f /etc/varnish/custom.vcl \ -u varnish -g varnish \ -S /etc/varnish/secret \ -s malloc,10G"

And here is the offending backend(s)

backend b1 { .host = "114.123.456.78

I have a high traffic website running with Drupal and Apache, five web servers behind a Varnish server load balancing. Let's say this site is example.com.

Xorg Starting Issue 40 weeks 6 days ago

I get this when trying to start X.https://gist.github.com/3649833I had some other errors before but I've seem to fix them. I've become stuck at this point.

tylerstrayhan https://bbs.archlinux.org/profile.php?id=59296

2012-09-06T01:57:33Z

Hi all,

For some simple testing I've tried lunching my GTK app under Unity with default settings on Ubuntu 12.04. I've spotted some issues with rendering widgets (at least I think that is the cause of problem).

modify varnish response url 32 weeks 6 days ago

So, my company has a corporate blog that's hosted by a third party hosting company that we proxypass so that www.company.com/blog resolves to the blog (hosted at blog.company.com).

My memory usage was a 4% after a fresh ubuntu 12.10 installation

after i install php packages etc using this gist, https://gist.github.com/4372049

my memory usage now reached 41%.

should i be concerned?

if not, then at what memory usage level should i be concerned?

if yes, then what remedies should I do?

UPDATE:

based on suggestion to post my top followed by >

I am trying to debug why my server has 3 seconds delay on each request.

These are my nginx and unicorn config files: https://gist.github.com/regedarek/de7f2e5cd1918b6224ac

My server info:

Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-37-generic x86_64)

System load: 0.02 Processes: 71 Usage of /: 38.9% of 6.89GB Users logged in: 0 Memory usage: 28%

Hey there, thanks for such a quick reply!Yes, lsmod doesn't show the radeon driver, however when I modprobe it, I'm met with this: https://gist.github.com/c63e596eba8f8274554d

s0l1dsnak3123 https://bbs.archlinux.org/profile.php?id=17322

2012-12-07T13:20:50Z