Monday, 2018-08-20

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openstackgerritNguyen Hai proposed openstack/python-designateclient stable/pike: import zuul job settings from project-config  https://review.openstack.org/59286204:30
openstackgerritNguyen Hai proposed openstack/python-designateclient stable/ocata: import zuul job settings from project-config  https://review.openstack.org/59286104:32
openstackgerritNguyen Hai proposed openstack/designate-specs master: import zuul job settings from project-config  https://review.openstack.org/59285505:22
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openstackgerritMerged openstack/designate master: Removing removed bandit plugins to fix gate  https://review.openstack.org/59320311:28
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openstackgerritTytus Kurek proposed openstack/designate master: CAA DNS records  https://review.openstack.org/59309613:54
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openstackgerritGraham Hayes proposed openstack/designate stable/rocky: Removing removed bandit plugins to fix gate  https://review.openstack.org/59371817:42
openstackgerritGraham Hayes proposed openstack/designate stable/queens: Removing removed bandit plugins to fix gate  https://review.openstack.org/59371917:42
openstackgerritGraham Hayes proposed openstack/designate stable/pike: Removing removed bandit plugins to fix gate  https://review.openstack.org/59372017:43
openstackgerritGraham Hayes proposed openstack/designate stable/ocata: Removing removed bandit plugins to fix gate  https://review.openstack.org/59372117:43
openstackgerritMerged openstack/designate master: Make update_status use synchronized_zone  https://review.openstack.org/58764218:30
openstackgerritMerged openstack/designate master: import zuul job settings from project-config  https://review.openstack.org/59330618:33
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openstackgerritMerged openstack/designate stable/rocky: Removing removed bandit plugins to fix gate  https://review.openstack.org/59371819:38
openstackgerritMerged openstack/designate stable/pike: Removing removed bandit plugins to fix gate  https://review.openstack.org/59372019:45
openstackgerritMerged openstack/designate stable/queens: Removing removed bandit plugins to fix gate  https://review.openstack.org/59371919:45
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openstackgerritMerged openstack/designate stable/ocata: Removing removed bandit plugins to fix gate  https://review.openstack.org/59372120:44
abainduris there a reason dnsmasq for tenant networks is started with --strict-order flag, and without --all-servers? I'm not talking about Designate here, but the internal DNS resolution21:40
abaindurwhat we noticed is that when we have multiple DNS forwarder addresses configured for our upstream/external DNS, and if the one goes down, all dns queries from a VM time out and take a long time21:42
abaindur1. Suppose we ping reddit.com. VM looks up its /etc/resolv.conf and queries it's local dnsmasq process21:43
abaindur2. dnsmasq receives it, but it has multiple upstream servers, --server=8.8.8.8 --server=10.1.10.2121:44
abaindur3. We noticed it always queries the latter argument first, 10.1.10.21, which is down. this is for both the A record and PTR record21:44
abaindur4. After 5 secondds, the VM resends (dnsmasq doesnt auto retry the 1nd upstream server - why?), this time dnsmasq queries the other upstream server, 8.8.8.8. This happens again for PTR record21:46
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