yahoo-eng-team team mailing list archive

[Rodolfo Alonso <1947974@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The method "neutron.agent.linux.ip_lib.network_namespace_exists" can
timeout in loaded systems. We have detected this problem during some
capacity tests. During those tests, the controllers are creating and
deleting networks; that implies the creation and deletion of DHCP
namespaces "qdhcp-xxx" in the same hosts. Adding additional logs (tagged
with "SK;"), we found this method was timing out.

Snippet: https://paste.opendev.org/show/810132/

New additional logs added: https://paste.opendev.org/show/810133/

** Affects: neutron
     Importance: Medium
     Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez)
         Status: New

** Changed in: neutron
   Importance: Undecided => Medium

** Changed in: neutron
     Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez)

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1947974

Title:
  "network_namespace_exists"can timeout in loaded systems

Status in neutron:
  New

Bug description:
  The method "neutron.agent.linux.ip_lib.network_namespace_exists" can
  timeout in loaded systems. We have detected this problem during some
  capacity tests. During those tests, the controllers are creating and
  deleting networks; that implies the creation and deletion of DHCP
  namespaces "qdhcp-xxx" in the same hosts. Adding additional logs
  (tagged with "SK;"), we found this method was timing out.

  Snippet: https://paste.opendev.org/show/810132/

  New additional logs added: https://paste.opendev.org/show/810133/

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1947974/+subscriptions