Analytics Engineering
The Wikimedia Foundation's Analytics Engineering team is part of the Technology department.
The Analytics Engineering Team's primary responsibility is to "empower and support data informed decision making across the Foundation and the Community".
We make Wikimedia related data available for querying and analysis to both WMF and the different Wiki communities and stakeholders.
We develop infrastructure so all our users, both within the Foundation and within the different communities, can access data in a self-service fashion that is consistent with the values of the movement.
We keep all our documentation here on Wikitech. See also this FAQ.
About us - Analytics/Team
Contact
If you have questions about our work or the infrastructure we provide, you can contact us in two ways:
- on our public mailing list, analytics@lists.wikimedia.org (subscribe, archives)
- in our public IRC channel, #wikimedia-analytics connect. You can use the keyword a-team to ping us, so we notice your question.
- during our office hours, which we host as of 2019, January 14th on the second Monday of every month. Add to your calendar or let us know if that time is too early for you, and we can hold a second session when needed.
Work organization
The analytics team uses Phabricator to track its projects.
- https://phabricator.wikimedia.org/tag/analytics/ for backlog triage
- https://phabricator.wikimedia.org/tag/analytics-kanban/ for in progress tasks
Prioritization
Datasets
- Webrequests [Traffic logs] and derived tables, including:
- Pageviews [Filtered traffic logs] [TODO - Revamp and add various systems and key differences in schema and usage]
- Inter-language [Traffic between different languages of the same project family]
- Unique Devices Estimates of unique devices at the project or project family level
- Mediawiki raw databases
- EventLogging (in the event database in hive)
- Edits history, Page history, User history
- Other reports
- Clickstream
Systems
We maintain various systems to allow querying of our datasets in different fashion.
| System name and link | Type | Accessibility |
|---|---|---|
| Archiva | Repository for Java archives | Private |
| AQS - Analytics Query Service | REST API for analytics data | Public |
| Clients (stat100X) | Analytics client nodes to access Hadoop and various services | Private |
| Cluster (Hadoop, Gobblin, Hive, Oozie, Spark...) | Hadoop | Private |
| Dashiki | Framework for building dashboards | Public |
| Druid | Data storage engine optimized for exploratory analytics | Private |
| EventLogging | Ad-hoc streaming pipeline | Private |
| EventStreams | Mediawiki events streams | Public |
| Hue | Web interface for Hive, Oozie, and other Cluster services | Private |
| Kafka | Data transport and streaming system | Private |
| MariaDB | Data storage for MediaWiki replicas and EventLogging | Private |
| Matomo (formerly known as Piwik) | Small-scale web analytics platform | Private |
| ReportUpdater | Job Scheduler | Private |
| Superset | Web interface for data visualization and exploration | Private |
| Jupyter | Hosted notebooks for data analysis | Private |
| Turnilo | Web interface for exploring data stored in Druid | Private |
| Wikistats (1 and 2) | Community Dashboard with high-level metrics | Public |
The list of scheduled manual maintenance tasks are documented here.
Try it out! Analytics/Tutorials
We'd rather have you having fun with our data :)
Please check the link above for something that might help you, and let us know if you don't find what you're after.
Table of Content
Go to the Analytics/TOC page to have a list of all pages we have under Analytics.