Public bug reported: This issue has been seen twice causing this related bug [1]. What happens is the DHCP agent updates the port using the subnet_id but not the actual ip_address that the port already has. So, the server allocates a new IP address and throws out the old one.
What it should do is recognize that there is already an IP address on the port that satisfies the request and avoid the churn. A previous attempt was made [1] to address this bug but was reverted because it had a side effect [3]. Need a fix that addresses this issue without the side-effect. [1] https://bugs.launchpad.net/neutron/+bug/1622616/ [2] https://review.openstack.org/#/c/369051/ [3] https://bugs.launchpad.net/neutron/+bug/1623800 ** Affects: neutron Importance: High Assignee: Carl Baldwin (carl-baldwin) Status: Confirmed ** Tags: l3-ipam-dhcp -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1625334 Title: Update port with subnet_id in fixed_ips allocates a new IP when existing one could be used. Status in neutron: Confirmed Bug description: This issue has been seen twice causing this related bug [1]. What happens is the DHCP agent updates the port using the subnet_id but not the actual ip_address that the port already has. So, the server allocates a new IP address and throws out the old one. What it should do is recognize that there is already an IP address on the port that satisfies the request and avoid the churn. A previous attempt was made [1] to address this bug but was reverted because it had a side effect [3]. Need a fix that addresses this issue without the side-effect. [1] https://bugs.launchpad.net/neutron/+bug/1622616/ [2] https://review.openstack.org/#/c/369051/ [3] https://bugs.launchpad.net/neutron/+bug/1623800 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1625334/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
