Bug 948026

Summary: BIND named 9.9.2 high CPU load due to missing managed-keys-directory statement in sample named.conf
Product: [Fedora] Fedora Reporter: Adrian Offerman <aad>
Component: bindAssignee: Tomáš Hozza <thozza>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 18CC: niki.guldbrand, ovasik, thozza
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: dhcp-4.2.5-2.fc17 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-06-18 01:29:00 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
corrected sample file /usr/share/doc/bind-9.9.2/sample/etc/named.conf none

Description Adrian Offerman 2013-04-03 19:53:42 UTC 
Created attachment 731323 [details]
corrected sample file /usr/share/doc/bind-9.9.2/sample/etc/named.conf

Description of problem:

After a while CPU load of BIND named goes over 200% and stays there, while still serving answers to DNS queries.

Version-Release number of selected component (if applicable):

9.9.2-8.P1.fc18.x86_64

How reproducible:

Start it up, and just wait for a couple of hours, or one or two days :-)
Note: this was on a very lightly used system.
Restarting the daemon won't help; the daemon runs normal again for a while only after rebooting.

Additional info:

This problem appears to be triggered by a missing statement:
  managed-keys-directory "dynamic";
in the /etc/named.conf file.
This problem was already reported in bug #709205 for BIND named 9.7.4 on FC14 here:
  https://bugzilla.redhat.com/show_bug.cgi?id=709205

Yes, the managed-keys-directory statement is there in the basic named.conf that is installed with the package. However, it is missing in the template configuration file /usr/share/doc/bind-9.8.2/sample/etc/named.conf that a lot of people might be using.

Attached a corrected sample file (added the DLV key path too).
Comment 1 Fedora Admin XMLRPC Client 2013-04-25 11:38:31 UTC 
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.
Comment 2 Tomáš Hozza 2013-05-13 11:38:52 UTC 
Fixed in bind-9.9.2-11.P2.fc18 [1].

[1] http://koji.fedoraproject.org/koji/buildinfo?buildID=418506
Comment 3 Fedora Update System 2013-05-13 11:46:14 UTC 
bind-9.9.3-0.6.rc2.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/bind-9.9.3-0.6.rc2.fc19
Comment 4 Fedora Update System 2013-05-24 20:13:59 UTC 
bind-9.9.3-0.6.rc2.fc19, dhcp-4.2.5-12.fc19, bind-dyndb-ldap-3.2-1.fc19, dnsperf-2.0.0.0-6.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2013-06-03 19:48:29 UTC 
bind-dyndb-ldap-2.6-2.fc18,dnsperf-2.0.0.0-4.fc18,dhcp-4.2.5-12.fc18,bind-9.9.3-2.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/bind-dyndb-ldap-2.6-2.fc18,dnsperf-2.0.0.0-4.fc18,dhcp-4.2.5-12.fc18,bind-9.9.3-2.fc18
Comment 6 Fedora Update System 2013-06-03 19:52:08 UTC 
dhcp-4.2.5-2.fc17,dnsperf-2.0.0.0-3.fc17,bind-dyndb-ldap-2.5-2.fc17,bind-9.9.3-2.fc17 has been submitted as an update for Fedora 17.
https://admin.fedoraproject.org/updates/dhcp-4.2.5-2.fc17,dnsperf-2.0.0.0-3.fc17,bind-dyndb-ldap-2.5-2.fc17,bind-9.9.3-2.fc17
Comment 7 Fedora Update System 2013-06-06 01:28:50 UTC 
Package dhcp-4.2.5-2.fc17, dnsperf-2.0.0.0-3.fc17, bind-dyndb-ldap-2.5-2.fc17, bind-9.9.3-3.P1.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing dhcp-4.2.5-2.fc17 dnsperf-2.0.0.0-3.fc17 bind-dyndb-ldap-2.5-2.fc17 bind-9.9.3-3.P1.fc17'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-10100/dhcp-4.2.5-2.fc17,dnsperf-2.0.0.0-3.fc17,bind-dyndb-ldap-2.5-2.fc17,bind-9.9.3-3.P1.fc17
then log in and leave karma (feedback).
Comment 8 Fedora Update System 2013-06-18 01:29:00 UTC 
bind-dyndb-ldap-2.6-2.fc18, dnsperf-2.0.0.0-4.fc18, dhcp-4.2.5-12.fc18, bind-9.9.3-3.P1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2013-06-18 01:36:22 UTC 
dhcp-4.2.5-2.fc17, dnsperf-2.0.0.0-3.fc17, bind-dyndb-ldap-2.5-2.fc17, bind-9.9.3-3.P1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.