修改 openstack 中 nova boot 创建实例只能在10个以内的限制，openstacknova
查阅官方Nova配置文档，表明Quotas默认值可以通过修改nova配置文件/etc/nova/nova.conf进行配置，官方文档地址：http://docs.openstack.org/folsom/openstack-compute/admin/content/list-of-compute-config-options.html，其中关于quotas的配置参数说明如下：
|
Configuration option=Default value |
(Type) Description |
|
max_age=0 |
(IntOpt) number of seconds between subsequent usage refreshes |
|
quota_cores=20 |
(IntOpt) number of instance cores allowed per project (tenant) |
|
quota_driver=nova.quota.DbQuotaDriver |
(StrOpt) Default driver to use for quota checks |
|
quota_floating_ips=10 |
(IntOpt) number of floating ips allowed per project (tenant) |
|
quota_gigabytes=1000 |
(IntOpt) number of volume gigabytes allowed per project (tenant) |
|
quota_injected_file_content_bytes=10240 |
(IntOpt) number of bytes allowed per injected file |
|
quota_injected_file_path_bytes=255 |
(IntOpt) number of bytes allowed per injected file path |
|
quota_injected_files=5 |
(IntOpt) number of injected files allowed |
|
quota_instances=10 |
(IntOpt) number of instances allowed per project (tenant) |
|
quota_key_pairs=100 |
(IntOpt) number of key pairs allowed per user |
|
quota_metadata_items=128 |
(IntOpt) number of metadata items allowed per instance |
|
quota_ram=51200 |
(IntOpt) megabytes of instance ram allowed per project (tenant) |
|
quota_security_group_rules=20 |
(IntOpt) number of security rules per security group |
|
quota_security_groups=10 |
(IntOpt) number of security groups per project (tenant) |
|
quota_volumes=10 |
(IntOpt) number of volumes allowed per project (tenant) |
|
reservation_expire=86400 |
(IntOpt) number of seconds until a reservation expires |
|
until_refresh=0 |
(IntOpt) count of reservations until usage is refreshed |
可以看到有一个关于实例的参数 quota_instances=10 就是在这里限制了只能在10个实例之内
这样我就能在配置文件中修改这个参数了
# vi /etc/nova/nova.conf
搜索到这个参数 把值改为20（根据自己的需求修改） 重启nova 服务
再次创建实例 发现问题解决了
扩展：
我们可以看到上面表格中海油很多其它参数 例如：quota_floating_ips=10 这里表明一个实例最多只能有10个浮动IP，同理可以修改这里显示的所有限制配置
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