[MaraDNS list] deadwood: ttl is not aging on continuous nslookup/dig

Sam Trenholme maradns at gmail.com
Tue Jan 3 12:50:08 EST 2012


Thank you for the Deadwood bug report.  I hope to have time over the
next few days to investigate this bug.  If I can reproduce it, I will
then work on fixing the bug.

- Sam

On Mon, Jan 2, 2012 at 5:25 AM, Srinivas Hebbar <sshebbar at gmail.com> wrote:
> Hello,
>
> With the A record TTL set to 60, the aging stops at "30" as long as
> I do dig every second. If I stop dig for 30 seconds, the cache  expires and
> new record with ttl 60 is responded by deadwood.
>
> This is happening on both 3.0.x and 3.1.x releases.
>
> Unless I stop dig for more than 30 seconds, the above record is never get
> updated.
>
> I have lots of LAN clients and the request is coming so often that the old
> record never expires
> from the cache.
>
> dig LOG:
> /home/shyam> while [ 1 ]; do dig @localhost test.testing.tindip.com | grep
> ^test; sleep 1; done
>
> test.testing.tindip.com. 60     IN      A       2.2.2.2
> test.testing.tindip.com. 59     IN      A       2.2.2.2
> test.testing.tindip.com. 58     IN      A       2.2.2.2
> test.testing.tindip.com. 57     IN      A       2.2.2.2
> test.testing.tindip.com. 56     IN      A       2.2.2.2
> test.testing.tindip.com. 55     IN      A       2.2.2.2
> test.testing.tindip.com. 54     IN      A       2.2.2.2
> test.testing.tindip.com. 53     IN      A       2.2.2.2
> test.testing.tindip.com. 52     IN      A       2.2.2.2
> test.testing.tindip.com. 51     IN      A       2.2.2.2
> test.testing.tindip.com. 50     IN      A       2.2.2.2
> test.testing.tindip.com. 49     IN      A       2.2.2.2
> test.testing.tindip.com. 48     IN      A       2.2.2.2
> test.testing.tindip.com. 47     IN      A       2.2.2.2
> test.testing.tindip.com. 46     IN      A       2.2.2.2
> test.testing.tindip.com. 45     IN      A       2.2.2.2
> test.testing.tindip.com. 44     IN      A       2.2.2.2
> test.testing.tindip.com. 43     IN      A       2.2.2.2
> test.testing.tindip.com. 42     IN      A       2.2.2.2
> test.testing.tindip.com. 41     IN      A       2.2.2.2
> test.testing.tindip.com. 40     IN      A       2.2.2.2
> test.testing.tindip.com. 39     IN      A       2.2.2.2
> test.testing.tindip.com. 38     IN      A       2.2.2.2
> test.testing.tindip.com. 37     IN      A       2.2.2.2
> test.testing.tindip.com. 36     IN      A       2.2.2.2
> test.testing.tindip.com. 35     IN      A       2.2.2.2
> test.testing.tindip.com. 34     IN      A       2.2.2.2
> test.testing.tindip.com. 33     IN      A       2.2.2.2
> test.testing.tindip.com. 32     IN      A       2.2.2.2
> test.testing.tindip.com. 31     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
>
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 28     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
> test.testing.tindip.com. 29     IN      A       2.2.2.2
>
>
> Thanks,
> Hebbar.


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