Description of problem:
Ephemeral ports are not open in compute firewall thus breaking live migration. Live migration fails with:
Live Migration failure: unable to connect to server at 'comp-r00-01.redhat.local:49152': No route to host
Version-Release number of selected component (if applicable):
openstack-tripleo-heat-templates-5.0.0-0.9.0rc3.el7ost.noarch
How reproducible:
100%
Steps to Reproduce:
1. Deploy overcloud with 2 computes, launch an instance
2. Try to live migrate it to the other node
Actual results:
Live migration fails.
Expected results:
Live migration succeeds.
Additional info:
According to the docs we need the ephemeral ports(49152-49215) to be opened on the compute node:
https://access.redhat.com/documentation/en/red-hat-openstack-platform/9/paged/migrating-instances/chapter-1-how-to-migrate-a-live-instance
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHEA-2016-2948.html