4cc6ed4b48
When Nova and/or Cinder are using Ceph as backend, qemu will need to open a connection and two threads for each and every Ceph OSD. Since all connections occur in the same qemu process, this may result in hitting default max open files limit. Thus in case of more then 10 volumes are attached to the same instance and are used actively can end up in blocked IO operations inside VMs. We increase these limits by default when RBD backend is used. Change-Id: Ib3081280cdbae1eb2235083c95c27e2efd0b413e
117 lines
4.3 KiB
YAML
117 lines
4.3 KiB
YAML
---
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# Copyright 2017, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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_nova_is_first_play_host: "{{ (nova_services['nova-conductor']['group'] in group_names and inventory_hostname == (groups[nova_services['nova-conductor']['group']] | intersect(ansible_play_hosts)) | first) | bool }}"
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nova_venv_packages: |-
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{%- set pkg_list = nova_pip_packages | union(nova_user_pip_packages) %}
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{%- if nova_oslomsg_amqp1_enabled | bool %}
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{%- set _ = pkg_list.extend(nova_optional_oslomsg_amqp1_pip_packages) %}
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{%- endif %}
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{%- if (nova_console_type == 'novnc') %}
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{%- set _ = pkg_list.extend(nova_novnc_pip_packages) %}
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{%- endif %}
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{%- if (nova_services['nova-compute']['group'] in group_names) %}
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{%- if nova_virt_type == 'ironic' %}
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{%- set _ = pkg_list.extend(nova_compute_ironic_pip_packages) %}
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{%- endif %}
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{%- endif %}
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{{- pkg_list | unique }}
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#
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# Compile a list of the services on a host based on whether
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# the host is in the host group and the service is enabled.
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#
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filtered_nova_services: |-
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{% set services = [] %}
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{% for key, value in nova_services.items() %}
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{% if (value['group'] in group_names) and
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(('condition' not in value) or
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('condition' in value and value['condition'])) and
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not ('wsgi_app' in value and value['wsgi_app']) %}
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{% set _ = value.update({'service_key': key}) %}
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{% set _ = services.append(value) %}
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{% endif %}
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{% endfor %}
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{{ services | sort(attribute='start_order') }}
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uwsgi_nova_services: |-
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{% set services = {} %}
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{% for key, value in nova_services.items() %}
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{% if (value['group'] in group_names) and
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(('condition' not in value) or ('condition' in value and value['condition']))
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and ('wsgi_app' in value and value['wsgi_app']) %}
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{% set _ = value.update(
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{
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'wsgi_path': nova_bin ~ '/' ~ value.wsgi_name,
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'wsgi_venv': ((nova_install_method == 'source') | ternary(nova_bin | dirname, None)),
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'uwsgi_uid': nova_system_user_name,
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'uwsgi_guid': nova_system_group_name,
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'uwsgi_processes': nova_wsgi_processes,
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'uwsgi_threads': nova_wsgi_threads
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}
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) %}
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{% set _ = services.update({key: value}) %}
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{% endif %}
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{% endfor %}
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{{ services }}
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# Define all Nova mountpoints when using NFS. If defined
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# the corresponding directory will only be created by the
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# mount point task.
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nova_mount_points: |-
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{% set mps = [] %}
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{% for mp in nova_nfs_client %}
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{% set _ = mps.append(mp.local_path) %}
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{% endfor %}
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{{ mps }}
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_nova_rootwrap_conf_overrides:
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DEFAULT:
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filters_path: "/etc/nova/rootwrap.d,/usr/share/nova/rootwrap"
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exec_dirs: "{{ nova_bin }},/sbin,/usr/sbin,/bin,/usr/bin,/usr/local/bin,/usr/local/sbin"
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nova_core_files:
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- tmp_f: "/tmp/api-paste.ini"
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target_f: "/etc/nova/api-paste.ini"
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config_overrides: "{{ nova_api_paste_ini_overrides }}"
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config_type: "ini"
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- tmp_f: "/tmp/rootwrap.conf"
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target_f: "/etc/nova/rootwrap.conf"
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config_overrides: "{{ _nova_rootwrap_conf_overrides | combine(nova_rootwrap_conf_overrides, recursive=True) }}"
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config_type: "ini"
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owner: "root"
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group: "{{ nova_system_group_name }}"
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mode: "0640"
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_nova_scheduler_filters: |-
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{% set default_filters = nova_scheduler_default_filters %}
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{% if default_filters is not iterable and default_filters is string %}
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{% set filters = default_filters.split(',') %}
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{% else %}
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{% set filters = default_filters %}
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{% endif %}
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{{ filters + nova_scheduler_extra_filters }}
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_qemu_default_conf_dict: |-
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{% set qemu_dict = {} %}
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{% if nova_rbd_inuse or nova_cinder_rbd_inuse %}
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{% set _ = qemu_dict.update({'max_files': '32768'}) %}
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{% set _ = qemu_dict.update({'max_processes': '131072'}) %}
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{% endif %}
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{{ qemu_dict }}
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_nova_qemu_conf: "{{ _qemu_default_conf_dict | combine(qemu_conf_dict) }}"
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