1570932 - Add telemetry about how often we observe network change events

Status: RESOLVED FIXED

(Core :: Networking, enhancement, P1)

Comment 1

[Dragana Damjanovic [:dragana]]

Nhi can you find someone to work on this?

Comment 2

[Michal Novotny [:michal]]

Attachment: Bug 1570932 - Add telemetry about how often we observe network change events, r?dragana

Comment 3

[Michal Novotny [:michal]]

Attachment: Request for data collection review form

Comment 4

[Chris H-C :chutten]

Comment on attachment 9088878 [details]
Request for data collection review form

Load-balance to :teon.

Comment 5

[Teon Brooks [:teon]]

Comment on attachment 9088878 [details]
Request for data collection review form

:michal will you be responsible for either renewing or turning off the collection with Fx 76?

Comment 6

[Michal Novotny [:michal]]

Yes. I assume there will be an email notification.

Comment 7

[Teon Brooks [:teon]]

Comment on attachment 9088878 [details]
Request for data collection review form

DATA COLLECTION REVIEW RESPONSE:

    Is there or will there be documentation that describes the schema for the ultimate data set available publicly, complete and accurate?

Yes. This collection is Telemetry so is documented in its definitions file [Events.yaml](https://hg.mozilla.org/mozilla-central/file/tip/toolkit/components/telemetry/Events.yaml) and the [Probe Dictionary](https://telemetry.mozilla.org/probe-dictionary/).

    Is there a control mechanism that allows the user to turn the data collection on and off?

Yes. This collection is Telemetry so can be controlled through Firefox's Preferences.

    If the request is for permanent data collection, is there someone who will monitor the data over time?

No. This collection will expire in Fx76.

    Using the category system of data types on the Mozilla wiki, what collection type of data do the requested measurements fall under?

Category 1, Technical.

    Is the data collection request for default-on or default-off?

Default on for pre-release channels only.

    Does the instrumentation include the addition of any new identifiers?

No.

    Is the data collection covered by the existing Firefox privacy notice?

Yes.

    Does there need to be a check-in in the future to determine whether to renew the data?

Yes. :michal is responsible for renewing or removing the collection before it expires <when>.

---
Result: datareview

Comment 8

[Chris H-C :chutten]

(In reply to Michal Novotny [:michal] from comment #6)

Yes. I assume there will be an email notification.

Unfortunately, at present there are no expiry emails sent for Telemetry Events. The system that sends expiry emails was built when it only had Histograms to worry about.

Sorry about that.

Comment 9

[Michal Novotny [:michal]]

Attachment: Bug 1570932 - Add telemetry about how often we observe network change events, r?dragana

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f592a66e8aba
Add telemetry about how often we observe network change events, r=dragana

Comment 11

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/f592a66e8aba

Comment 12

[Bogdan Tara[:bogdan_tara | bogdant]]

https://hg.mozilla.org/releases/mozilla-beta/rev/f592a66e8aba

Comment 13

[Tim Smith (inactive) 👨‍🔬 [:tdsmith]]

Dragana noticed that the distribution on TMO showed a lot of events in the underflow bucket (time < 1000 ms) for MacOS: https://mzl.la/2ovzvZD

Nhi asked me to look at whether this showed up at the user level.

Query: https://sql.telemetry.mozilla.org/queries/65284/source

About a quarter of MacOS client-days included at least one network change bounce (time between events less than 1 second). If a client-day on Mojave contained any bounces, the median number of bounces was 2 and the mean was 22. The 95th percentile of bounces in a single client-day was 27 and the maximum number observed was 5,160.

There were no obvious differences between recent OS versions.

Neither Linux or Windows show nearly as many events in the underflow bucket.