requestlist size doesn't stop growing since 1.8.0 upgrade

publicarray publicarray at
Sun Sep 23 22:09:30 UTC 2018

Hi nusenu,

I've always had a steady growth in the request list I always thought that it is normal. I'm not 100% sure but unbound tries again later to get an answer for the requests in the list but backs-off asking the servers with longer intervals over time.
y=you can use "unbound-control dump_requestlist" to so see what is currently in the list. Most likely you will see * queries and others that will never be answered. 
If you want to you can flush them with "unbound-control flush_requestlist".

I use the munin plugin too :) <>


> On 23 Sep 2018, at 8:25 pm, nusenu via Unbound-users <unbound-users at> wrote:
> Hi,
> I upgraded recently from 1.7.3 to 1.8.0, since then I'm observing a constant
> and steady growth of the requestlist queue. Currently it is about x8
> what it usually used to be and it still keeps growing.
> Is that expected with some of the new default?
> I specifically disabled so-reuseport (see other thread).
> The number of qps remained unchanged.
> I assume that a growing queue size is bad for service quality 
> if the number of qps is unchanged.
> Since I'm currently not observing any negative impact on reply time
> I'm also not ruling out that this might be a monitoring issue (using unbound's
> munin plugin). Have there been any changes that would affect the requestlist graph?
> -- 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the Unbound-users mailing list