Soft purge support (patch)

[Rogier 'DocWilco' Mulhuijzen]

Oops, just now spotted your signature. Is this just an iteration?


On Mon, Jan 7, 2013 at 10:20 AM, Rogier 'DocWilco' Mulhuijzen <
drwilco at drwilco.net> wrote:

> How is this patch set different from the soft-purges that Varnish Software
> was working on?
>
>
> On Sat, Jan 5, 2013 at 12:55 PM, Lasse Karstensen <
> lasse.karstensen at gmail.com> wrote:
>
>> Magnus Hagander:
>> > On Fri, Jan 4, 2013 at 3:37 PM, Lasse Karstensen
>> > <lasse.karstensen at gmail.com> wrote:
>> >> Attached is a small patch set that implement soft purge support
>> >> for Varnish trunk.
>> [..]
>> >> The main use case for soft purges are big Varnish setups with many
>> >> backends and automated purging systems. When doing maintenance on one
>> of
>> >> the backends, you end up with automatically purging something that
>> can't be
>> >> recreated right now and Varnish starts sending 503 replies.
>> >> With softpurge the grace handling will kick in and serve a stale
>> object instead.
>> > Is there anything about this that actually becomes different in the
>> > "with many backends" scenario? I've been looking forward to this
>> > feature for many usecases with a single backend - when that backend is
>> > slow or unreliable. I don't see why the number of backends would make
>> > any difference, but am I missing something about the implementation?
>> > (Automated purging is exactly the usecase for me though)
>>
>> No, there is nothing in there that is specific to how many backends you
>> have.
>>
>> I was just trying to set the stage a bit, since it might not be entirely
>> obvious when you need this.
>>
>> --
>> Lasse Karstensen
>> Varnish Software AS
>> http://www.varnish-software.com/
>>
>> _______________________________________________
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>>
>>
>
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