Custom Query (2152 matches)

Reported by rgrp, 3 years ago.

We want to cache/archive data associated to a resource so it is available if the resource url disappears (and in order to support other processing we may wish to do e.g. webstorer ...)

Etherpad: ​http://ckan.okfnpad.org/queue (most relevant parts inlined here)

Preliminaries

• Add task_status table to store qa/archiever/webstore information that does not need to be versioned. - #1363 (and #1371 - related logic functions)

Configuration setup for daemons

Pass config through to workers i.e site_url, user, api_key. Need to make site user account. #1408

celeryd config:

All providers of tasks will add an item to the following entry point:

[ckan.tasks]
name = ckanext.{name}.tasks:....

celeryconfig.py

from pkg_resources import iter_entry_points
for entry in iter_entry_points:
     celeryimports.appen(....)

CELERY_IMPORTS = celeryimports

Work Items

• Resource change notifications in core - Make an IResourceChange and IResourceUrlChange. [1d] [0.75d] - #1383
• Generate archiving request on resource url change [0.25d][0.25d] - #1399
• Make site user account.
• Make entry point system for celery config
• Archiver daemon #891
  1. implement link-check function and task (point 2 from Archiver.update above) [1d] [0.5d]
  2. Rewrite archiver to use external storage. (decide how!)[3d][~2d]
• Write to resource and task status table.[1d][0.75d]
• [Required?] Make archived data available in WUI - #892
• Documentation - #1400

Reported by rgrp, 3 years ago.

• Possible sibling / requirement: #1397 (resource archiving)

• Setup test environment. 1d
• Make task to upload files to webstorer. 3d
  • This includes writing back webstore_url and updated date. 0.5d
  • Type guessing of file format. 1d
  • Make cron to upload all un webstored resources. 0.5d
• Testing for errors by running cron 2d
• Make nice way to deploy celery 1d.
• Documentation. 1d
• Deployment. 1d

Reported by rgrp, 3 years ago.

Superticket: #1397

Generate archiving request on resource url change by implementing IResourceUrlChange and sending tasks to celery. [0.25d][0.25d]

Will be part of of ckanext-archiver extension.

Process:

1. A resource is added to CKAN
2. IResourceCreate event generated
3. IF: resource url points to ckan storage or falls within some other set of exclusion conditions then END else continue
4. Generate a Archiver.Update task with resource.id