rusackas opened a new pull request, #40717:
URL: https://github.com/apache/superset/pull/40717
### SUMMARY
Cypress is the single largest consumer of CI runner minutes. Each shard in
the `cypress-matrix` job runs a **full, independent setup** — Python,
Postgres,
test-data import, Node, `npm ci`, instrumented asset build, and Cypress
install —
before executing only its round-robin slice of the spec suite. That fixed
per-shard cost is paid once per matrix job, so the shard count drives both
the
number of runners *and* the duplicated setup minutes.
This PR halves the shard count from **6 → 3**:
- `matrix.parallel_id: [0, 1, 2]` (was `[0..5]`)
- `PARALLELISM: 3` (kept in sync with the round-robin split in
`scripts/cypress_run.py`, which buckets specs into `PARALLELISM` groups and
runs the group matching `parallel_id` — the two values **must** match)
It also smoke-tests the push-only `/app/prefix` variant on a **single shard**
(via a `matrix.exclude`) rather than the full matrix. That variant exists to
catch URL-prefix routing regressions before a release, not to re-run the
entire
suite under a prefix.
**Net effect on job counts:**
| event | before | after |
|-------|--------|-------|
| pull_request | 6 Cypress jobs | **3** |
| push (master/release) | 12 Cypress jobs | **4** (3× `""` + 1 smoke
`/app/prefix`) |
Fewer, slightly longer shards trade a small amount of wall-clock for a large
reduction in total runner minutes and duplicated setup.
### TESTING INSTRUCTIONS
CI-only change. Verify on this PR that exactly **3** `cypress-matrix` jobs
run
(app_root `""`), all green. The `/app/prefix` smoke shard only appears on
`push`
events to `master`/release branches.
### ADDITIONAL INFORMATION
- [ ] Has associated issue:
- [ ] Changes UI
- [ ] Includes DB Migration
- [ ] Introduces new feature or API
- [ ] Removes existing feature or API
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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