FxA Multiple Devices metrics

[billmaggs]

As a FF product group member I want to know how many FxA users are using multiple devices or profiles.

I want to know how many users are using 2 devices or profiles

I want to know how many users are using 3 or more devices

[rfk]

/cc @philbooth. After a product/project discussion last week, we decided it's more important to work on this from a metrics standpoint first rather than from a "session status dashboard" perspective. The set of enabling work is broadly similar though:

• Add last access time to login sessions (Record user-agent and last-access-time on session tokens fxa-auth-server#983)
• Add user agent information to login sessions (Record user-agent and last-access-time on session tokens fxa-auth-server#983)
• Add optional client-provided device ID to login sessions (Record device id on sessionTokens fxa-auth-server#988)
• Add scripting to extract the core multi-device metrics from the db and dump them into our metrics pipeline (Gather and emit multi-device metrics fxa-auth-db-mysql#72)
• Add multi-device graphs to the metrics dashboard
• Have Desktop Firefox pass the sync client GUID as its device ID when logging into Sync
• Have Fennec pass the sync client GUID as its device ID when logging into Sync
• Have Firefox for iOS pass the sync client GUID as its device ID when logging into Sync

[rfk]

Exporting these FEATURE cards from Aha has not turned out to be useful in practise, I'm closing them in favour of more direct use of Aha.

This feature lives at: https://mozilla.aha.io/features/FXA-21