That DHCP release at the end of the log is a bit misleading. It's the one generated by the DHCP agent itself as the port is removed. I don't believe the instance ever got the address to release it.
http://logs.openstack.org/91/367191/2/check/gate-tempest-dsvm-neutron-dvr-multinode-full-ubuntu-xenial/7fd0e33/logs/screen-q-dhcp.txt.gz#_2016-09-08_14_16_41_966
http://logs.openstack.org/91/367191/2/check/gate-tempest-dsvm-neutron-dvr-multinode-full-ubuntu-xenial/7fd0e33/logs/syslog.txt.gz#_Sep_08_14_16_41
That DHCP release at the end of the log is a bit misleading. It's the one generated by the DHCP agent itself as the port is removed. I don't believe the instance ever got the address to release it.
http:// logs.openstack. org/91/ 367191/ 2/check/ gate-tempest- dsvm-neutron- dvr-multinode- full-ubuntu- xenial/ 7fd0e33/ logs/screen- q-dhcp. txt.gz# _2016-09- 08_14_16_ 41_966
http:// logs.openstack. org/91/ 367191/ 2/check/ gate-tempest- dsvm-neutron- dvr-multinode- full-ubuntu- xenial/ 7fd0e33/ logs/syslog. txt.gz# _Sep_08_ 14_16_41