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feat(highwind): read metrics from metric-hub - #621
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jaredlockhart merged 3 commits intoOct 30, 2026
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jaredlockhart merged 3 commits into
jaredlockhart merged 3 commits into
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scholtzan
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Oct 27, 2026
mikewilli
reviewed
Oct 27, 2026
Because * Highwind's metrics and data sources are hard-coded, so they drift from the definitions Jetstream reads * Each experiment's resolved metric list is already computed in the Experimenter mirror This commit * Reads each experiment's metric names off the mirror's resolved Jetstream metric set and builds their SQL from metric-hub's nimbus/ definitions via metric-config-parser's aggregation_plan() * Resolves the analysis unit's source column per metric-hub data source instead of per app, and reads windows from the plan's cumulative_window/incremental_window/repeat_windows fields * Reports a metric that has no nimbus/ definition, or whose windows Highwind cannot express, against the experiments that asked for it, rather than computing it * Removes the hard-coded guardrail metrics, data sources and reducers, and installs git in the image so metric-config-parser can clone metric-hub at run time https://mozilla-hub.atlassian.net/browse/EXP-7631
Because * A metric-hub window that doesn't fit the bucket grid stopped the whole run * Every source was scanned for every unit with every experiment's metrics This commit * Reports metrics whose windows don't fit the 7-day bucket grid instead of failing the run * Builds each unit's queries from its own experiments' metrics and skips source and unit pairs with nothing to compute https://mozilla-hub.atlassian.net/browse/EXP-7631
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Because * Calls through a module named metrics read like operations on a list of metrics * The discovery query grouped a list that is already one entry per metric This commit * Imports the metric-hub loading functions by name, with names that say what each does * Reads each experiment's metric list straight from the mirror without regrouping it * Rewords the run_windows docstring https://mozilla-hub.atlassian.net/browse/EXP-7631
scholtzan
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Oct 29, 2026
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https://mozilla-hub.atlassian.net/browse/EXP-7631
Checklist for reviewer:
Commits should reference a bug or github issue, if relevant (if a bug is referenced, the pull request should include the bug number in the title)
Scan the PR and verify that no changes (particularly to
.circleci/config.yml) will cause environment variables (particularly credentials) to be exposed in test logsEnsure the container image will be using permissions granted to telemetry-airflow responsibly.