Where are the missing requests?

[Wouter Wijngaards]

Hi Viktor,

On 6/30/19 5:09 AM, Viktor Dukhovni via Unbound-users wrote:
> 
> When I run "unbound-control dump_requestlist", I consistently see
> fewer requests output than I'd expect:

The command only prints the requests on the queue for the first worker
(thread0).  It does not print from the other ones.

In your printout it looks higher, even.  The reason is that the
unbound-control TLS stream is connected to that thread, and that makes
it easier to print out.

Best regards, Wouter

> 
>     # (unbound-control stats_noreset | grep 'requestlist.current.user'; unbound-control dump_requestlist | wc -l)
>     thread0.requestlist.current.user=272
>     thread1.requestlist.current.user=225
>     total.requestlist.current.user=497
> 	 286
> 
>     # (unbound-control stats_noreset | grep 'requestlist.current.user'; unbound-control dump_requestlist | wc -l)
>     thread0.requestlist.current.user=283
>     thread1.requestlist.current.user=206
>     total.requestlist.current.user=489
> 	 303
> 
>     # (unbound-control stats_noreset | grep 'requestlist.current.user'; unbound-control dump_requestlist | wc -l)
>     thread0.requestlist.current.user=272
>     thread1.requestlist.current.user=219
>     total.requestlist.current.user=491
> 	 300
> 
> As you can see above, the request list has ~500 entries, but only
> ~300 are returned by dump_requestlist.  Is this an artefact of some
> sort of lossy list traversal?  Are requests completing too fast to
> be captured by dump_requestlist?
> 

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