Hi ! I am investigating the memory usage on a BIND 9.9 instance. Yes, I know I should update to 9.11 or 9.12, but the situation there will probably not be a lot different.
When checking the BIND XML statistics I see the following in the "Cache DB RRsets" section, which I think could be the reason for the high memory usage: !AAAA 18446744073709551559 !A6 18446744073709551607 Is this an overflow on the counter for these negative responses in Cache, or could there really be that many objects in the cache ? max-ncache-ttl is not set, so should be the default of 3 hours, but I don't really see those numbers decreasing. max-cache-size is set, but I see the named process easily exceeding that limit by not just a bit, sometimes doubling it or even more. How can I better find out what is currently using most of the memory allocated by BIND, instead of try-and-error on some settings to see if that helps ? Regards Marc
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