varnish backing file gone missing

[Matt Schurenko]

Yeah it says "deleted" when I use lsof. Is this going to cause a problem eventually? Since the file is gone is the kernel just using RAM alone now? Swap usage hasn't increased. I'm wondering how it is continuing to function.

Matt Schurenko
Systems Administrator
 
airG share your world
Suite 710, 1133 Melville Street
Vancouver, BC  V6E 4E5
P: +1.604.408.2228
F: +1.866.874.8136
E: MSchurenko at airg.com
W: www.airg.com



-----Original Message-----
From: varnish-misc-bounces at varnish-cache.org [mailto:varnish-misc-bounces at varnish-cache.org] On Behalf Of Mark Moseley
Sent: September-26-11 1:00 PM
Cc: varnish-misc at varnish-cache.org
Subject: Re: varnish backing file gone missing

On Mon, Sep 26, 2011 at 12:54 PM, Matt Schurenko <MSchurenko at airg.com> wrote:
> Update:
>
>
>
> I noticed that I mistakenly created a 40GB  zero-filled file rather than a
> 48GB one:
>
>
>
> dd if=/dev/zero of=/tmp/varnish-cache bs=1G count=40
>
>
>
> Not sure if that would make any difference.
>
>
>
> Matt Schurenko
> Systems Administrator
>
>
> airG® Share Your World
> Suite 710, 1133 Melville Street
>
> Vancouver, BC  V6E 4E5
>
> P: +1.604.408.2228
>
> F: +1.866.874.8136
>
> E: MSchurenko at airg.com
>
> W: www.airg.com
>
> From: varnish-misc-bounces at varnish-cache.org
> [mailto:varnish-misc-bounces at varnish-cache.org] On Behalf Of Matt Schurenko
> Sent: September-26-11 12:43 PM
> To: varnish-misc at varnish-cache.org
> Subject: varnish backing file gone missing
>
>
>
> I just noticed that the backing file I configured varnish to use is now
> gone:
>
>
>
> [root at mvp13 ~]# ps -ef | grep varnishd
>
> root      4419     1  0 Sep07 ?        00:00:00 /usr/local/sbin/varnishd -s
> file,/tmp/varnish-cache,48G -T 127.0.0.1:2000 -a 0.0.0.0:80 -t 604800 -f
> /usr/local/etc/varnish/default.vcl -p http_headers 384 -p connect_timeout
> 4.0
>
>
>
> [root at mvp13 ~]# ls /tmp/varnish-cache
>
> ls: /tmp/varnish-cache: No such file or directory
>
>
>
> If I do an lsof I see this:
>
>
>
> varnishd   4420 nobody    4u      REG                8,1 51539607552
> 62160904 /tmp/varnish-cache (deleted)
>
>
>
> I'm pretty sure I never deleted it. Is this normal behaviour? What are the
> implications of this file being removed while varnish is running? Varnishd
> still appears to be working fine. I have another varnish server running but
> the backing file is still there. BTW I'm running varnish version 2.1.5.
>
>
>

Perhaps a log rotation script deleted it? If so and varnishd is still
running, it should show up in lsof with "(deleted)" next to the
pathname.

_______________________________________________
varnish-misc mailing list
varnish-misc at varnish-cache.org
https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc