[Varnish] #1239: Problem with cleaning up "gone" bans

[Varnish]

#1239: Problem with cleaning up "gone" bans
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 Reporter:  xani      |       Owner:
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:
Component:  varnishd  |     Version:  3.0.3
 Severity:  normal    |  Resolution:
 Keywords:            |
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Description changed by tfheen:

Old description:

> Our configuration looks like this:
> -Varnish serves application content via ESI
> -application server invalidates changed content
> -vast majority of invalidations are done by purge, small percentage by
> bans
> -on average we got  < 1 ban/s
> -~10GB cache about 3/4 used, ~2 mil object.
>
> After 3 days we had >170k bans in "gone" state and only few hundred
> active, basically none of bans were removed from list
>
> ban config is:
>         if (req.http.X-ban-regex) {
>                 ban("obj.http.x-hash ~ ^" + req.http.host + req.http.X
> -ban-regex + "$");
>                 error 200 "Banned";
>         } else if (req.http.X-ban-single) {
>                 ban("obj.http.x-hash == " + req.http.host + req.http.X
> -ban-single);
>                 error 200 "Banned";
>         }
> and then x-hash is set to right value.

New description:

 Our configuration looks like this:
 -Varnish serves application content via ESI
 -application server invalidates changed content
 -vast majority of invalidations are done by purge, small percentage by
 bans
 -on average we got  < 1 ban/s
 -~10GB cache about 3/4 used, ~2 mil object.

 After 3 days we had >170k bans in "gone" state and only few hundred
 active, basically none of bans were removed from list

 ban config is:
 {{{
         if (req.http.X-ban-regex) {
                 ban("obj.http.x-hash ~ ^" + req.http.host + req.http.X
 -ban-regex + "$");
                 error 200 "Banned";
         } else if (req.http.X-ban-single) {
                 ban("obj.http.x-hash == " + req.http.host + req.http.X
 -ban-single);
                 error 200 "Banned";
         }
 }}}
 and then x-hash is set to right value.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1239#comment:1>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator