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Bug 1773116 - lots of resolver priming query complete messages
Summary: lots of resolver priming query complete messages
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: bind
Version: 8.4
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: 8.0
Assignee: Petr Menšík
QA Contact: qe-baseos-daemons
URL:
Whiteboard:
Depends On: 1680028
Blocks: 1756201
TreeView+ depends on / blocked
 
Reported: 2019-11-15 22:47 UTC by SHAURYA
Modified: 2023-09-07 21:00 UTC (History)
10 users (show)

Fixed In Version: bind-9.11.13-1.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1680028
Environment:
Last Closed: 2020-03-18 14:10:07 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)

Description SHAURYA 2019-11-15 22:47:06 UTC 
+++ This bug was initially created as a clone of Bug #1680028 +++

Description of problem:
Named seems to log
  named[XXXX]: resolver priming query complete
for almost every name lookup, or so it seems.

Version-Release number of selected component (if applicable):
bind-9.11.5-2.P1.fc29.x86_64

How reproducible:
Always

Steps to Reproduce:
1. configure and run a local recursive caching resolver

Actual results:
Lots of root priming messages in the logs

Expected results:
Very few of those, if any 

Additional info:
I run a recursive caching server, currently forward first to OpenDNS, and have these hints in named.conf:

zone "." IN {
        type hint;
        file "named.ca";
};

Just compared the named.ca file to the output of a dig query for the root servers and they are the same (except for the comments in header/footer)

What am I missing?  Attaching my (sanitized) named.conf.

--- Additional comment from Henrique Martins on 2019-03-23 14:59:33 UTC ---

Explanation of this behaviour here:
  https://kb.isc.org/docs/aa-01537.

Another ISC page:
  https://kb.isc.org/docs/aa-01309
claims:
  Fixed in 9.12.0, 9.11.3, 9.10.7 and 9.9.12, bug RT #45241 could cause named to send unnecessary and frequent priming queries.
However, I now have
  bind-9.11.5-4.P4.fc29.x86_64
and I'm still getting lots of messages logged.

Can be eliminated by querying all root servers for -tA and -tAAAA (or -tANY). I've added that to a 30m crontab for now.

--- Additional comment from Petr Menšík on 2019-09-11 11:02:31 UTC ---

Hi Henrique,

sorry for great delay. This is strange issue, but I think I read something similar on release issue notes.

Have you tried updated versions? Does this issue persist with more recent updates?

--- Additional comment from Henrique Martins on 2019-09-11 17:12:46 UTC ---

Yup, it's been a while. 
I'm now on:
  bind-9.11.10-1.fc30.x86_64

Disabled my root priming crontab job earlier today and the logs seem clean of that annoying message.

I'll report back tomorrow and if still clean, it is time to close the bug.

--- Additional comment from Henrique Martins on 2019-09-12 11:56:05 UTC ---

Seems to be fixed in the current version.
Time to close this.
Thanks
Comment 1 Petr Menšík 2020-03-18 14:10:07 UTC 
This bug seems no longer present in RHEL 8, since rebase to more recent version. Fixed by commit [1].

1. https://gitlab.isc.org/isc-projects/bind9/commit/aa9866c390a21d6984aa75cdb84d7bc77e114c2f
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