Question about refreshing expired cache in background

[Guillaume Quintard]

> 2. that just hasn't been implemented yet, if I'm not mistaken (that would
be the softban feature)

-- 
Guillaume Quintard

On Tue, Jul 24, 2018 at 11:17 PM, Serhii Korobov <greyhomeua at gmail.com>
wrote:

> Hi
> I have question about "softban feature". I did not find information about
> that, except this message https://varnish-cache.org/
> lists/pipermail/varnish-dev/2014-May/007836.html
>
> I suppose this feature has not implemented yet. Am I right?
>
> Thanks!
>
> 2018-07-23 22:56 GMT+03:00 Guillaume Quintard <guillaume at varnish-software.
> com>:
>
>> Hi,
>>
>> 1. You already answer that one: you get a background fetch when obj.ttl
>> <= 0 but obj.ttl + obj.grace > 0.
>>
>> 2. that just hasn't been implemented yet, if I'm not mistaken (that would
>> be the softban feature)
>>
>> --
>> Guillaume Quintard
>>
>> On Mon, Jul 23, 2018 at 2:16 AM, Serhii Korobov <greyhomeua at gmail.com>
>> wrote:
>>
>>> Hi developers of Varnish
>>>
>>> I read information about Varnish 4 release (
>>> https://varnish-cache.org/lists/pipermail/varnish-announce
>>> /2014-April/000696.html ) and found there a new feature
>>> http://prntscr.com/k8dgfk . I need an information about refreshing
>>> expired cache in background.
>>>
>>> As I know from developer guide, fetching new object in background thread
>>> is available only in Grace Mode - http://book.varnish-software
>>> .com/4.0/chapters/Saving_a_Request.html#grace-mode when object's ttl
>>> has expired but grace period is not over yet.
>>>
>>> Here are my questions:
>>> 1. When and how can I use background cache refreshing?
>>> 2. Why Grace Mode and cache invalidation via "ban" command doesn't work
>>> together?
>>>
>>> Thanks
>>>
>>>
>>> _______________________________________________
>>> varnish-misc mailing list
>>> varnish-misc at varnish-cache.org
>>> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>>>
>>>
>>
>
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