yahoo-eng-team team mailing list archive

[Feng Xi Yan <yanfengxi@xxxxxxxxxx>]

Public bug reported:

When the nova compute service is starting, it will do a host_init, and
this will result in initing instance one by one, by fetching VMs info
one by one from vCenter. If there are thousands of VMs on OpenStack,
there will be thousands of requests to vCenter, which is a big network
burden.

This circumstance also happens when compute manager doing periodical
power state syncing. If the power state syncing takes too long time, and
too network bandwidth, it will block the ongoing normal VM deployment.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1513735

Title:
  VMware VCDriver: the  _init_host and period power sync take too long
  time when there are thousands VMs

Status in OpenStack Compute (nova):
  New

Bug description:
  When the nova compute service is starting, it will do a host_init, and
  this will result in initing instance one by one, by fetching VMs info
  one by one from vCenter. If there are thousands of VMs on OpenStack,
  there will be thousands of requests to vCenter, which is a big network
  burden.

  This circumstance also happens when compute manager doing periodical
  power state syncing. If the power state syncing takes too long time,
  and too network bandwidth, it will block the ongoing normal VM
  deployment.

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