BIND 9.16.1/9.16.2 memory leak?

[mike tancsa]

On 4/19/2020 9:46 AM, sthaug at nethelp.no wrote:
> >
> I now have a pcap file of queries that I can replay with the "drool"
> application, and I'm consistently seeing similar memory leak problems
> (i.e. the problems are reproducible). The memory leak rate seems to be
> very approximately linear with the query rate - so replaying at 10
> times the original speed means we also leak around 10 times as much per
> minute.
>
> Upgrading to 9.16.2 (and also libuv 1.36.0) makes no difference - the
> same memory leak is observed.
>
> Any suggestions?

I have two servers, one mostly master, one mostly slave running 9.16.2
on RELENG_11 and the mostly slave one is showing this behaviour but not
the other.

every 30 seconds

VSZ        RSS
305256  269784
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269792
305256  269796
305256  269796
305256  269796
305256  269796
305256  269796
305256  269888
305256  269896
305256  269896
305256  269896
331880  294332
331880  295240
331880  296036
331880  296836
331880  296840
331880  296848
331880  296848
331880  296856
331880  296860
331880  296872
331880  296872