Hey all, after having upgraded to dnsmasq 1.62 (current), increasing the lease times up to 7 days, I now have a very silent syslog on my gateway host. However, there is one KVM instance (running redis inside, w/ a 16GB RAM flavor), that still looses its IP very very frequently.
It now seems, that even after just 4 hours of KVM instance uptime, the nova-network node receives the following and logs it with: 2260 Jun 15 16:51:37 cesar1 dnsmasq-dhcp[8707]: DHCPREQUEST(br100) 10.10.40.16 fa:16:3e:3d:ff:f3 2261 Jun 15 16:51:37 cesar1 dnsmasq-dhcp[8707]: DHCPACK(br100) 10.10.40.16 fa:16:3e:3d:ff:f3 redis-appdata1 [....] 3381 Jun 15 21:59:41 cesar1 dnsmasq-dhcp[10889]: DHCPREQUEST(br100) 10.10.40.16 fa:16:3e:3d:ff:f3 3382 Jun 15 21:59:41 cesar1 dnsmasq-dhcp[10889]: DHCPACK(br100) 10.10.40.16 fa:16:3e:3d:ff:f3 redis-appdata1 [....] And 26:59 was exactly the time our redis server went down. Although, I cannot find anything except cron logs in the KVM instance's syslog. My question now is, why is such a request causing network unreachability to that node? Many thanks in advance, Christian Parpart.
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