From 832bc1f47fce1b61f23259502c08f9253656cb38 Mon Sep 17 00:00:00 2001
From: Jaroslav Henner <jhenner@redhat.com>
Date: Wed, 30 Sep 2015 20:51:35 +0200
Subject: Prevent dns resolution recursion (loop).
The dnsmasq should not be resolving the example.com recursively, because
in case that we have /etc/NetworkManager/dnsmasq.d/libvirt_dnsmasq.conf:
server=/example.com/192.168.55.1
the dnsmasq will be asking itself, therefore a dns resolution loop is
created, which causes
Maximum number of concurrent DNS queries reached (max: 150)
and performance degradation of dns resolution on the whole hypervizor and
guests.
This patch will fix that in the domain.xml, which will cause adding
local=/example.com/
to the /var/lib/libvirt/dnsmasq/openshift-ansible.conf, effectively
fixing the problem.
---
playbooks/libvirt/openshift-cluster/templates/network.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'playbooks/libvirt')
diff --git a/playbooks/libvirt/openshift-cluster/templates/network.xml b/playbooks/libvirt/openshift-cluster/templates/network.xml
index 86dcd62bb..050bc7ab9 100644
--- a/playbooks/libvirt/openshift-cluster/templates/network.xml
+++ b/playbooks/libvirt/openshift-cluster/templates/network.xml
@@ -8,7 +8,7 @@
<!-- TODO: query for first available virbr interface available -->
<bridge name='virbr3' stp='on' delay='0'/>
<!-- TODO: make overridable -->
- <domain name='example.com'/>
+ <domain name='example.com' localOnly='yes' />
<dns>
<!-- TODO: automatically add host entries -->
</dns>
--
cgit v1.2.3