high latency between VMs in openstack using OVS
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openvswitch (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Precise |
Fix Released
|
Medium
|
Chris J Arges |
Bug Description
SRU Justification:
[Impact]
* There is high latency when testing latency between VMs in an Openstack environment.
* This affects OVS in P/Q.
[Test Case]
* Setup Openstack.
* On a compute node create at least 15 tenants and add 50 instances (more instances show larger latencies).
* From the Neutron node ping to a particular instance:
ip netns exec qrouter-<uuid> ping -c 1 <instance ip>
* We expect this latency to be similar to the latency from not using OVS.
[Regression Potential]
* The following patch from upstream OVS solves the issue: c37d4da4f0fd019
* It requires 755be9ea9d7250e
* There has been testing already done with these two patches applied on top of 1.4.6 in precise.
Changed in openvswitch (Ubuntu): | |
status: | New → Fix Released |
Changed in openvswitch (Ubuntu Precise): | |
assignee: | nobody → Chris J Arges (arges) |
Changed in openvswitch (Ubuntu Quantal): | |
assignee: | nobody → Chris J Arges (arges) |
Changed in openvswitch (Ubuntu Precise): | |
importance: | Undecided → Medium |
Changed in openvswitch (Ubuntu Quantal): | |
importance: | Undecided → Medium |
Changed in openvswitch (Ubuntu Precise): | |
status: | New → Triaged |
status: | Triaged → In Progress |
Changed in openvswitch (Ubuntu Quantal): | |
status: | New → In Progress |
no longer affects: | openvswitch (Ubuntu Quantal) |
Hello Chris, or anyone else affected,
Accepted openvswitch into quantal-proposed. The package will build now and be available at http:// launchpad. net/ubuntu/ +source/ openvswitch/ 1.4.6-0ubuntu1. 12.10.3 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.
If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed. In either case, details of your testing will help us make a better decision.
Further information regarding the verification process can be found at https:/ /wiki.ubuntu. com/QATeam/ PerformingSRUVe rification . Thank you in advance!