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  1. Bug #1295715
  2. Comment #5

Comment 5 for bug 1295715

Revision history for this message
tdsparrow (sqallowlee) wrote : Re: dnsmasq (for neutron-dhcp-agent) is sometimes configured with duplicate leases

I met the same issue on neutron 2013.2.1. Only our vms will be destroyed in short time, so i can find mac address for the old record in dnsmasq. There're seven hosts with dhcp-agents and each of them report different duplication.

I suspect the reason of my issue is that dhcp agent cannot update the heartbeat timestamp on time, and agents_db.py took them as down, no release notification will be sent to this agent. my system uses the default conf for agent_down_time(5s) and report_interval(4s). After changing report_interval to 3 for one host, this issue was gone on the host for 12 hours.

It's almost the same logic in code from HEAD.