search

F5Networks / f5-openstack-agent

The F5 Agent for OpenStack Neutron allows you to deploy BIG-IP services in an OpenStack environment.
http://clouddocs.f5.com/products/openstack/agent/latest
Apache License 2.0
14 stars 38 forks source link

Race condition in disconnected network scenario #443

Closed abattye closed 7 years ago

abattye commented 7 years ago

We are seeing a race condition using the disconnected feature with Neutron hierarchical port binding. It happens the first time a LB/Listener is created on a network and all subsequent processing of the entities on the device fail. This Gist shows the stacktrace associated with the failure https://gist.github.com/abattye/b097578432d0ca529b9b0aa9dfbc052e

The problem is 100% reproducible in our environment.

After the failure, the VLAN object is available and subsequent create attempts work.

We are running v9.1.0 of the driver/agent against stable/mitaka neutron/neutron-lbaas.

The attached stacktrace was created with vCMP active, but we see the same issue without.

dflanigan commented 7 years ago

Waiting for more information from @abattye

mattgreene commented 7 years ago

Believe this issue is resolved via https://github.com/F5Networks/f5-openstack-agent/issues/506, which reimplements HBP to support the generic Cisco ML2 mechanism driver which retaining backwards compatibility with the legacy implementation.