[MaraDNS list] deadwood: ttl is not aging on continuous nslookup/dig
Sam Trenholme
maradns at gmail.com
Tue Jan 3 22:41:05 EST 2012
Update: I have successfully reproduced this bug and have made a SQA
regression for the bug. Today's snapshot (20120103) has this new
regression (sqa/sqa_ttl_expire):
http://maradns.org/deadwood/snap/
Next: Fix the bug in Deadwood's code.
Timeframe: Unknown; hopefully tomorrow.
- Sam
On Tue, Jan 3, 2012 at 9:50 AM, Sam Trenholme <maradns at gmail.com> wrote:
> 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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