Ceilometer default multiple workers option is unrelated with cpu amount

[Vitaly Gusev]

Upstream bug: https://bugs.launchpad.net/ceilometer/+bug/1481254

All of the *_workers (api_workers, collector_workers, notification_workers) options default value is 1, but it seems the default value is designed to be the num of cpu, see[1], because the default value is 1, if we didn't configure the option, it will unrelated with the cpu amount.

[1] http://git.openstack.org/cgit/openstack/ceilometer/tree/ceilometer/service.py#n101

[Ivan Berezovskiy (iberezovskiy)]

Upstream patch is https://review.openstack.org/#/c/226011/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/257812

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/257812
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=ae9163dc7b1f90bca93f5b751c2fae1ffb09dc20
Submitter: Jenkins
Branch: master

commit ae9163dc7b1f90bca93f5b751c2fae1ffb09dc20
Author: iberezovskiy <email address hidden>
Date: Tue Dec 15 13:24:28 2015 +0300

    Configure workers for Ceilometer services

    Workers option can be set for Ceilometer API, Collector
    and Agent Notification services. This patch uses upstream
    commit: https://review.openstack.org/#/c/226011/

    Change-Id: I8d12d32959f6970bf555b5182ff49c55249132bc
    Closes-bug: #1522475

[Vitaly Gusev (vgusev)]

Verified on ISO:
VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "307"
  build_id: "307"
  fuel-nailgun_sha: "26c78e1c2913b8ca194126ca38161ff9593daef4"
  python-fuelclient_sha: "6810231ec6d333fc10f7020f9bdf5122e05e998a"
  fuel-agent_sha: "f4c22a341ce8a98cc9151bd928f1d97071288b3c"
  fuel-nailgun-agent_sha: "a33a58d378c117c0f509b0e7badc6f0910364154"
  astute_sha: "c56dfde2da034151a7e707b381c4cf9d213b4ba2"
  fuel-library_sha: "03558ce6627a5adb417b1f6bbe1c0b3a853e8d6b"
  fuel-ostf_sha: "9910a4726cbd038c257582b429527e40c4c3cb20"
  fuel-mirror_sha: "5d986722c7e911d1dd44800f2721bdbfcb7f3282"
  fuelmenu_sha: "5abc3c8fea8e578cf9250f40acf9df98adb214a3"
  shotgun_sha: "cacb93cbc28910ff0dc38f30a855efa9af50d8ce"
  network-checker_sha: "d443ef47abeda58d319bc8d33d5005dd09440a02"
  fuel-upgrade_sha: "718aa3d7021fee2970f0fa6791cf5188578cc516"
  fuelmain_sha: "713b2d7421f1ee660d17e406668f74550f96e18a"