d9832282cf
Previously neutron was keeping track of dhcp lease time in order to ensure it didn't hand out an ip address that was already leased. This patch removes that logic and instead leverages the dhcp_release utility. This allows us to reuse ip addresses immediately after a port is deleted. This patch also bumps the lease time to 24 hours instead of 2 minutes with reduces the amount of dhcp traffic. DocImpact There is a DocImpact for this bug related to the upgrade path. One should first upgrade their dhcp-agents. Then wait till the dhcp_lease time has expired. Lastly, update neutron-server in order to avoid the case where an instance is deleted and the dnsmasq process has not released the lease and neturon allocates that ip to a new port. Fixes bug: 1202392 Implements blueprint: remove-dhcp-lease Change-Id: Ifcb4f093c92904ceb896438987d53e692eb7fb26
# -- Welcome!
You have come across a cloud computing network fabric controller. It has identified itself as "Neutron." It aims to tame your (cloud) networking!
# -- External Resources:
The homepage for Neutron is: http://launchpad.net/neutron . Use this site for asking for help, and filing bugs. Code is available on github at <http://github.com/openstack/neutron>.
The latest and most in-depth documentation on how to use Neutron is available at: <http://docs.openstack.org>. This includes:
Neutron Administrator Guide http://docs.openstack.org/trunk/openstack-network/admin/content/
Neutron API Reference: http://docs.openstack.org/api/openstack-network/2.0/content/
The start of some developer documentation is available at: http://wiki.openstack.org/NeutronDevelopment
For help using or hacking on Neutron, you can send mail to <mailto:openstack-dev@lists.openstack.org>.