Enabling 'ovs_use_veth' for DHCP/L3 agents breaks Neutron on recent versions of CentOS
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openstack-manuals |
Fix Released
|
Medium
|
Stephen Gordon |
Bug Description
After assisting someone with troubleshooting networking, I determined that setting 'ovs_use_veth = True' in dhcp_agent.ini and l3_agent.ini breaks Neutron (at least with GRE) on recent versions of CentOS... perhaps because the kernel seems to fully support namespaces. This issue probably also affects Scientific Linux. Can anyone confirm whether recent RHEL kernels fully support namespaces? I would like to clarify this step and similar steps in other sections for all distributions.
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Built: 2014-01-13T19:59:49 00:00
git SHA: b045a86d6d07d97
URL: http://
source File: file:/home/
xml:id: install-
Changed in openstack-manuals: | |
status: | New → Confirmed |
Changed in openstack-manuals: | |
assignee: | nobody → Stephen Gordon (sgordon) |
<sgordon> Sam-I-Am, so - for RHEL/CentOS 6.4 the stock kernel did not support netns BUT we shipped a patched kernel in RDO
<sgordon> Sam-I-Am, for RHEL/CentOS 6.5 the stock kernel includes netns support
<sgordon> RDO still has a to ship a modified iproute2 though - i believe we couldn't update that in 6.* without breaking our kABI promises
<Sam-I-Am> sgordon: ah ha. i think i did a yum upgrade on a 6.4 box and got the new kernel
<sgordon> but the long and the short of it anyone using RDO Havana/Icehouse should have netns support
<sgordon> by virtue of either the RDO modified kernel (6.4) or the stock kernel (6.5)
<Sam-I-Am> which are the packages the guide references
<sgordon> right