mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-03 18:47:53 +00:00
64 lines
2.2 KiB
ReStructuredText
64 lines
2.2 KiB
ReStructuredText
=====================
|
|
Firefox Health Report
|
|
=====================
|
|
|
|
This directory contains the implementation of the Firefox Health Report
|
|
(FHR).
|
|
|
|
Firefox Health Report is a background service that collects application
|
|
metrics and periodically submits them to a central server.
|
|
|
|
Implementation Notes
|
|
====================
|
|
|
|
healthreporter.jsm contains the main interface for FHR, the
|
|
*HealthReporter* type. An instance of this is created by the data
|
|
reporting service. See /services/datareporting/.
|
|
|
|
providers.jsm contains numerous Metrics.Provider and Metrics.Measurement
|
|
used for collecting application metrics. If you are looking for the FHR
|
|
probes, this is where they are.
|
|
|
|
Preferences
|
|
===========
|
|
|
|
Preferences controlling behavior of Firefox Health Report live in the
|
|
*datareporting.healthreport.* branch.
|
|
|
|
Some important preferences are:
|
|
|
|
* **service.enabled** - Controls whether the entire health report
|
|
service runs. The overall service performs data collection, storing, and
|
|
submission. This is the primary kill switch for Firefox Health Report
|
|
outside of the build system variable. i.e. if you are using an
|
|
official Firefox build and wish to disable FHR, this is what you
|
|
should change.
|
|
|
|
* **uploadEnabled** - Whether uploading of data is enabled. This
|
|
is the preference the checkbox in the UI reflects. If this is
|
|
disabled, FHR still collects data - it just doesn't upload it.
|
|
|
|
If the entire service is disabled, you lose data collection. This means that
|
|
data analysis won't be available because there is no data to analyze!
|
|
|
|
Registering Providers
|
|
=====================
|
|
|
|
Firefox Health Report providers are registered via the category manager.
|
|
See HealthReportComponents.manifest for providers defined in this
|
|
directory.
|
|
|
|
Essentially, the category manager receives the name of a JS type and the
|
|
URI of a JSM to import that exports this symbol. At run-time, the
|
|
providers registered in the category manager are instantiated. This
|
|
allows for a loose coupling of providers which in turns makes managing
|
|
the code behind the providers much simpler.
|
|
|
|
Other Notes
|
|
===========
|
|
|
|
There are many legal and privacy concerns with this code, especially
|
|
around the data that is submitted. Changes to submitted data should be
|
|
signed off by responsible parties.
|
|
|