Allow the number of scheduler workers to be tuned

Code Issues Proposed changes

Similar to the other non-uwsgi services, the number of scheduler
workers can now be tuned [1]. We enable this to be used by adding
a tunable for it.
[1] https://review.openstack.org/159382
Change-Id: I523acc0e613d94278a1e3dbb403a08fe3b8549f5

This commit is contained in:

Jesse Pretorius

2018年08月09日 14:31:46 +01:00

parent 363162da23

commit b2868f373a

2 changed files with 5 additions and 0 deletions

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4
defaults/main.yml

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@@ -416,6 +416,10 @@ nova_cinder_rbd_inuse: False

# compute the number of api workers to use.

# nova_metadata_workers: 16

# If ``nova_scheduler_workers`` is unset the system will use half the number of available VCPUS to

# compute the number of api workers to use.

# nova_scheduler_workers: 16

## Cap the maximun number of threads / workers when a user value is unspecified.

nova_api_threads_max:16

nova_api_threads:"{{ [[ansible_processor_vcpus|default(2) // 2, 1] | max, nova_api_threads_max] | min }}"

1
templates/nova.conf.j2

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@@ -314,6 +314,7 @@ use_forwarded_for = {{ nova_network_services[nova_network_type]['use_forwarded_f

vendordata_jsonfile_path = /etc/nova/vendor_data.json

[scheduler]

workers = {{ nova_scheduler_workers | default(nova_api_threads) }}

max_attempts = {{ nova_scheduler_max_attempts }}

scheduler_driver = {{ nova_scheduler_driver }}

periodic_task_interval = {{ nova_scheduler_driver_task_period }}