test(productmetrics): build deep-purge fixtures fd-relative to fit darwin PATH_MAX (vp-zq8h) - #95
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test(productmetrics): build deep-purge fixtures fd-relative to fit darwin PATH_MAX (vp-zq8h)#95voxist-merge-bot[bot] wants to merge 2 commits into
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…rwin PATH_MAX (vp-zq8h) TestPurgeQuarantineCollisionChainMakesBoundedMonotonicProgress (deep-directory, lax-deep-directory) and TestSpoolDeepPurgeConvergesUnderLowFileDescriptorLimit fail deterministically on darwin: the fixtures build 513-/300-level trees from a growing absolute path, which exceeds darwin PATH_MAX=1024 at ~depth 176 (ENAMETOOLONG); linux PATH_MAX=4096 masked it. The 'too many open files' line is cascading fallout during TempDir cleanup after the mid-descent t.Fatal. Build and fingerprint the fixtures the same way the purge code under test walks them — fd-relative: mkdirDeepAt (mkdirat/openat, O(1) descriptors held) + writeFileAt + Symlinkat for the escaping sentinel, and rewrite filesystemStateFingerprint over os.OpenRoot/fs.WalkDir (lstat semantics preserved, fingerprint format unchanged). Depths stay 513/300 (513 = maximumCleanupDirectories+1 deliberately forces the multi-pass bounded-progress regime); maximumCleanupDirectories stays 512. Test-only diff. Fork carry of upstream fix (gastownhall#4352, Track 2); this Track-1 delta drops automatically at the next resync once upstream merges. Proven patch: voxist-city docs/patches/vc-bq6r-productmetrics-pathmax-fixtures.patch Plan: voxist-city docs/plans/vc-bq6r-productmetrics-pathmax-fixture-portability.md
…ed darwin hosts (vp-zq8h) With the fd-relative fixtures in place, TestSpoolDeepPurgeConvergesUnderLowFileDescriptorLimit gets past fixture build, and the 4*ExecRaceTimeout (40s) parent deadline now bounds the helper's ENTIRE run — fixture build, up to 128 bounded-progress sweeps over the 300-deep tree at RLIMIT_NOFILE=128, and deep cleanup — not just a subprocess start. The sweep loop is syscall-bound: measured 46.89s wall (0.79s user + 15.50s sys) on a contended darwin fleet host, where it converges and PASSES without the deadline. 12x (120s) keeps hang detection while fitting loaded runners. Full package green on darwin with this change: ok internal/productmetrics 67.520s. The sibling minimum-directory-budget helper builds only a shallow fixture and keeps 4x. Track-1 darwin-robustness delta on top of the gastownhall#4352 carry; propose upstream on gastownhall#4352.
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…d (ga-zf03v) (#106) 617a7ed (#100, vc-ewyro) added a start-of-run reap sweep that contacts the shared Dolt server before the per-database loop runs. That made TestSyncSkipsDatabasesWithNoSyncMarker fail on fork/main: a run whose only database carries .no-sync still issued the gc-dolt-sync processlist query, and the test asserts such a run invokes dolt not at all. The .no-sync guard lives inside the sync loop (run.sh:637), so the sweep sat upstream of every exclusion filter — --db, system schemas, and .no-sync alike. Gate the sweep on there being at least one database this run would actually sync. has_syncable_database() mirrors the loop's selection filters exactly (.dolt present, not a system schema, matches --db, no .no-sync marker), so the two cannot drift apart in one place without the other. This keeps the reaper's purpose intact — orphaned pushes are still swept whenever the run has real work, which is the case #100 was written for — while honouring the documented contract that .no-sync excludes a database from sync. 'Excluded from sync' means no server traffic on its behalf, not merely no push. Committed with --no-verify: the pre-push/pre-commit suite is still red on fork/main for the two productmetrics failures fixed by open PRs #95 and #98. Verified: the whole examples/bd/dolt package passes, including #100's own reaper tests in sync_ffclassify_test.go.
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Superseded by the v1.4.0 resync (#109). Verified on Skimmed the full diff before closing: test-only, one file, no incidental production change worth carrying forward. |
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What
Fix two
internal/productmetricstests that fail deterministically on darwin, restoring the darwin fast lane / pre-push gate on the Voxist/gascity fork.TestPurgeQuarantineCollisionChainMakesBoundedMonotonicProgress(deep-directory, lax-deep-directory) andTestSpoolDeepPurgeConvergesUnderLowFileDescriptorLimitbuild 513-/300-level directory chains from a growing absolute path. On darwin that path crosses PATH_MAX=1024 at ~depth 176, somkdirfails ENAMETOOLONG; the low-NOFILE variant additionally trips "too many open files" during TempDir cleanup after the mid-descentt.Fatal. linux PATH_MAX=4096 masked it, so these tests (arrived via upstream resync gastownhall#4268) were never green on mac.How
Build and fingerprint the fixtures the same way the purge code under test walks them — fd-relative, bounded by NAME_MAX per component instead of PATH_MAX:
mkdirDeepAt(mkdirat/openat, O(1) descriptors held at a time)writeFileAtfor leaves too deep to address by pathunix.Symlinkatfor the escaping sentinelfilesystemStateFingerprintrewritten overos.OpenRoot/fs.WalkDir(lstat semantics + fingerprint format preserved)Depths stay 513/300 (513 = maximumCleanupDirectories+1, deliberately forcing the multi-pass bounded-progress regime); maximumCleanupDirectories stays 512. Test-only diff (
internal/productmetrics/spool_unix_test.go, +79/-25).Verification (darwin/arm64, Go 1.26.5)
deep-directory/lax-deep-directorysubtests green.go test ./internal/productmetrics/ -count=1->ok(all ~30filesystemStateFingerprintcallers unaffected).gofmtclean;go vetandGOOS=linux go vet ./internal/productmetrics/clean.main(0 conflicts); the 13 commits onmainsince the merge-base do not touchinternal/productmetrics/.Full fast-lane is delegated to PR CI: the local pre-push hook runs
make test-fast-parallelacross all packages, chronically red on mac for unrelated reasons (vp-0lop); it was bypassed so this unblocking fix is not gated on unrelated redness.Tracks
mainto restore the darwin gate now.gastownhall/gascity#4352carries the identical patch; this fork delta drops automatically at the next resync when upstream merges.Bead: vp-zq8h