yahoo-eng-team team mailing list archive

[Joe Gordon <1257788@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

As seen by the large-ops test nova-network has trouble booting 150 VMs
concurrently. Part of the problem is that setting up the network for
each instance is relatively expensive with many locks and root-wrapped
calls. Both of which significantly hurt performance.  One possible fix
would be to do more bulk network operations when possible, so instead of
100 separate calls to a root-wrapped tool call it once.

** Affects: neutron
     Importance: Undecided
         Status: New

** Affects: nova
     Importance: Low
         Status: New

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https://bugs.launchpad.net/bugs/1257788

Title:
  nova-network doesn't handle large amount of concurrent booting
  instances well

Status in OpenStack Neutron (virtual network service):
  New
Status in OpenStack Compute (Nova):
  New

Bug description:
  As seen by the large-ops test nova-network has trouble booting 150 VMs
  concurrently. Part of the problem is that setting up the network for
  each instance is relatively expensive with many locks and root-wrapped
  calls. Both of which significantly hurt performance.  One possible fix
  would be to do more bulk network operations when possible, so instead
  of 100 separate calls to a root-wrapped tool call it once.

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