Public bug reported: Since [1][2][3] it is possible to set a tunnelled network as a gateway network for a router. The router will be pinned to a chassis in order to bind the gateway ``Logical_Router_Port`` (GW LRP) to this chassis. In [3], a HA implementation was done using the list provided by a router associated ``HA_Chassis_Group``.
However, this implementation requires Neutron to update the pinned chassis manually when a change in the HA_Chassis_Group happens; for example, when a ``Chassis`` is removed from the database. But if a node fails and the ``Chassis`` is not removed from the database, this HA implementation will fail. This bug proposes a more robust method that is not to pin the ``Logical_Router`` but to assign the ``HA_Chassis_Group`` to the GW LRP. That provides a more robust HA support as long as OVN checks the chassis interfaces, if one fails, it changes the GW LRP binding. [1]https://bugs.launchpad.net/neutron/+bug/2052821 [2]https://review.opendev.org/c/openstack/neutron/+/909194 [3]https://review.opendev.org/c/openstack/neutron/+/909437 Jira reference: https://issues.redhat.com/browse/OSPRH-12265 ** Affects: neutron Importance: Medium Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez) Status: New ** Changed in: neutron Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez) ** Changed in: neutron Importance: Undecided => Medium ** Description changed: Since [1][2][3] it is possible to set a tunnelled network as a gateway network for a router. The router will be pinned to a chassis in order to bind the gateway ``Logical_Router_Port`` (GW LRP) to this chassis. In [3], a HA implementation was done using the list provided by a router associated ``HA_Chassis_Group``. However, this implementation requires Neutron to update the pinned chassis manually when a change in the HA_Chassis_Group happens; for example, when a ``Chassis`` is removed from the database. But if a node fails and the ``Chassis`` is not removed from the database, this HA implementation will fail. This bug proposes a more robust method that is not to pin the ``Logical_Router`` but to assign the ``HA_Chassis_Group`` to the GW LRP. That provides a more robust HA support as long as OVN checks the chassis interfaces, if one fails, it changes the GW LRP binding. [1]https://bugs.launchpad.net/neutron/+bug/2052821 [2]https://review.opendev.org/c/openstack/neutron/+/909194 [3]https://review.opendev.org/c/openstack/neutron/+/909437 + + Jira reference: https://issues.redhat.com/browse/OSPRH-12265 -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/2101162 Title: [OVN] Use HA_Chassis_Group for tunnelled gateway network LRPs Status in neutron: New Bug description: Since [1][2][3] it is possible to set a tunnelled network as a gateway network for a router. The router will be pinned to a chassis in order to bind the gateway ``Logical_Router_Port`` (GW LRP) to this chassis. In [3], a HA implementation was done using the list provided by a router associated ``HA_Chassis_Group``. However, this implementation requires Neutron to update the pinned chassis manually when a change in the HA_Chassis_Group happens; for example, when a ``Chassis`` is removed from the database. But if a node fails and the ``Chassis`` is not removed from the database, this HA implementation will fail. This bug proposes a more robust method that is not to pin the ``Logical_Router`` but to assign the ``HA_Chassis_Group`` to the GW LRP. That provides a more robust HA support as long as OVN checks the chassis interfaces, if one fails, it changes the GW LRP binding. [1]https://bugs.launchpad.net/neutron/+bug/2052821 [2]https://review.opendev.org/c/openstack/neutron/+/909194 [3]https://review.opendev.org/c/openstack/neutron/+/909437 Jira reference: https://issues.redhat.com/browse/OSPRH-12265 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/2101162/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
