[ckan-discuss] Architecture Best Practice

Fri May 3 21:07:26 BST 2013

I hear Vitor has done some chef: https://github.com/vitorbaptista/chef-ckan

David

On 30 April 2013 23:32, David F. Flanders <david.flanders at ands.org.au> wrote:
> Kids there a puppet, chef or juju build file for ckan?  I'd like to run it
> on OpenStack. /Flanders
>
> On May 1, 2013 7:58 AM, "David Read" <david.read at hackneyworkshop.com> wrote:
>>
>> Marina,
>>
>> Great to hear about your project - sounds excellent.
>>
>> Looking after one CKAN server is a bit of work, so your consideration
>> of running 5 to 10 of these things concerns me. Unless they really are
>> almost identical configurations. You know the sort of thing -
>> monitoring your backups are running nightly and they aren't using up
>> all your disk space, then you find a CKAN bug and want to install the
>> patch, and then you need to change the caching settings or migrate the
>> database and install a new plugin. To do a good job with these sorts
>> of issues coming up, you'll really need something like Puppet to keep
>> track of the configurations. So if you can do it all with one CKAN
>> instance then that might save on maintenance work.
>>
>> 300 to 1200 extra fields would worry me somewhat from the performance
>> point of view, although my experience doesn't include the SOLR caching
>> tricks that CKAN 2.0+ has. All the same I think it is well worth doing
>> some tests with a schema this big and a suitable number of datasets
>> (stuffed with test data, even if all the same) as soon as you can, to
>> check that CKAN runs acceptably.
>>
>> David
>>
>>
>> On 30 April 2013 13:03, Sean Hammond <sean.hammond at okfn.org> wrote:
>> >> Speaking of validation, is there any documentation I'm missing on
>> >> validators.py? I couldn't quite tell how those validations are
>> >> currently
>> >> being called. (For example I tried to work backwards in the code how
>> >> default CKAN stops you if you try to enter a name under 2 characters
>> >> for a
>> >> dataset, but I couldn't clearly find where it was being called.)
>> >
>> > This wiki page might be relevant:
>> >
>> >
>> > https://github.com/okfn/ckan/wiki/Converters-and-Validators-in-navl-Schemas
>> >
>> > The validators are called by the validate() function (in
>> > ckan/lib/navl/dictization_functions.py). Each action function in
>> > ckan/logic/action/*.py should call validate() at some point, passing in
>> > the appropriate schema.
>> >
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