[Bug 1665270] Re: Lower number of workers by default

James Page james.page at ubuntu.com
Thu Feb 23 18:46:34 UTC 2017


** Changed in: cinder (Juju Charms Collection)
       Status: New => Invalid

** Changed in: glance (Juju Charms Collection)
       Status: New => Invalid

** Changed in: heat (Juju Charms Collection)
       Status: New => Invalid

** Changed in: keystone (Juju Charms Collection)
       Status: New => Invalid

** Changed in: neutron-api (Juju Charms Collection)
       Status: New => Invalid

** Changed in: neutron-gateway (Juju Charms Collection)
       Status: New => Invalid

** Changed in: nova-cloud-controller (Juju Charms Collection)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1665270

Title:
  Lower number of workers by default

Status in OpenStack cinder charm:
  New
Status in OpenStack glance charm:
  New
Status in OpenStack heat charm:
  New
Status in Charm Helpers:
  New
Status in OpenStack keystone charm:
  New
Status in OpenStack neutron-api charm:
  New
Status in OpenStack neutron-gateway charm:
  New
Status in OpenStack nova-cloud-controller charm:
  New
Status in cinder package in Juju Charms Collection:
  Invalid
Status in glance package in Juju Charms Collection:
  Invalid
Status in heat package in Juju Charms Collection:
  Invalid
Status in keystone package in Juju Charms Collection:
  Invalid
Status in neutron-api package in Juju Charms Collection:
  Invalid
Status in neutron-gateway package in Juju Charms Collection:
  Invalid
Status in nova-cloud-controller package in Juju Charms Collection:
  Invalid

Bug description:
  On containerized setups with multiple cpus and hyperthreading on the
  metals the containers can see a large number of cores. With the
  default worker multiplier settings this eg. results in 112 workers
  plus a leader processes on one of our installs. With HA we have then
  3x113 processes serving in total, which is a bit of a waste (3x16G of
  RSS for one service, as an example)

  While this can be tuned down I'd suggest to cap the number of workers
  when the worker-multiplier setting is on default to make this more
  sensible out of the box

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