[Openstack-operators] [openstack-dev] [nova] Quota Default Values

Joe Gordon jogo at cloudscaling.com
Wed Nov 14 23:50:50 UTC 2012


the amazon link[1] shows the instance limit is not just 20 VMs:

"You are limited to running 20 On-Demand or Reserved Instances, and running
100 Spot Instances per region. Cluster GPU Quadruple Extra Large instances
and High I/O Quadruple Extra Large instances are limited to running 2
On-Demand instances per region (Currently cg1.4xlarge instances are only
available in the US East (N. Virginia) and EU West (Ireland) regions, and
hi1.4xlarge instances are available in the US East (N. Virginia and EU West
(Ireland) regions). If you need more instances, complete the Amazon EC2
instance request form <http://aws.amazon.com/contact-us/ec2-request> with
your use case and your instance increase will be considered. Limit
increases are tied to the region they were requested for."

Do you know of any other limits besides the ones listed above?



On Wed, Nov 14, 2012 at 2:08 PM, Thomas Vachon <vachon at sessionm.com> wrote:

> Actually AWS has many quotas including numbers of instance types one
> account can launch. I'm sure there are others I have not hit yet too.
> On Nov 14, 2012 5:06 PM, "Joe Gordon" <jogo at cloudscaling.com> wrote:
>> Hi openstack-dev and openstack-operators,
>> I would like to start a discussion on what the default values for quotas
>> should be; many of the default values have not been changed since September
>> 2010 (commit 56779ebfec9cd382f170e307a1dc6403e339807f), and it may be time
>> to revisit the default values.  Below is a list of the current default
>> quota values in nova/quota.py.
>> quota_instances=10
>> quota_cores=20
>> quota_ram=50 * 1024
>> quota_floating_ips=10
>> quota_metadata_items=128
>> quota_injected_files=5
>> quota_injected_file_content_bytes=10 * 1024
>> quota_injected_file_path_bytes=255
>> quota_security_groups=10
>> quota_security_group_rules=20
>> quota_key_pairs=100
>> While some of these values are fairly large for small scale testing (100
>> key_pairs), some quotas are easily reached in a small environment such
>> as quota_instances=10 and
>> quota_cores=20.  With the default quotas you can only run 10 m1.tinys, 10
>> m1.mediums or 5 m1.larges.
>> Operators, have you had any issues with the current default values for
>> quotas?
>> While one should need to adjust the quotas as needed when using nova,
>> that does not negate the need for good default values.  So what should
>> the default values be?  Should some of the quotas be disabled by default?
>>  Should we have default values for all of the quotas or force users to
>> explicitly set some?  Who is the target audience for the default values for
>> the quotas?
>> For comparison Amazon only has one quota by default, an instance quota of
>> 20 VMs (
>> http://aws.amazon.com/ec2/faqs/#How_many_instances_can_I_run_in_Amazon_EC2
>> ).
>> best,
>> Joe Gordon
>> _______________________________________________
>> OpenStack-operators mailing list
>> OpenStack-operators at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
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