Pr poc parallel workload antithesis#36536
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…older .env mzbuild's _build_locked runs `git clean -ffdX <image_path>` before each build, which wipes any gitignored file in the build context — including the .env we generate. Two fixes: 1. publish:false on antithesis-config so the standard ci.test.build flow skips it entirely on regular nightly builds (where .env never exists). Only build-antithesis.sh / push-antithesis.py builds this image, and they write .env first. 2. Commit a placeholder .env so the file is tracked (survives git clean) and participates in mzbuild's fingerprint computation. build-antithesis.sh overwrites it with real registry refs before the build runs; fingerprint reflects the overwritten content per build.
Add 16 Antithesis properties for Kafka source ingestion (NONE + UPSERT
envelopes) to the scratchbook, plus the workload-side implementation of
upsert-key-reflects-latest-value.
Scratchbook additions:
- sut-analysis Appendix A: kafka source pipeline detail
- existing-assertions: enumerated SUT-side panic/assert sites that are
candidates for Antithesis SDK instrumentation
- property-catalog Category 7: 16 new Kafka/UPSERT properties
- property-relationships clusters 7-10 plus cross-cluster connections
- 16 per-property evidence files
- evaluation/synthesis.md: four-lens review
Workload:
- parallel_driver_upsert_latest_value.py: produces upserts+tombstones
with deterministic randomness, requests a quiet period, polls
mz_source_statistics for catchup, and asserts per-key value match
(two always() assertions + one sometimes() liveness anchor).
- helper_pg / helper_kafka / helper_quiet / helper_random /
helper_source_stats / helper_upsert_source: shared utilities for
subsequent Kafka source properties.
…o-data-duplication
… state-rehydrates-correctly
…config} + transitive deps
…atalog properties
…zable-reads workload driver
… catalog-recovery-consistency workload driver
…imeouts; remove dead upsert.rs (classic) antithesis asserts
…r multi-replica fault coverage
…are RocksDB lock When I added clusterd2 in 4366c9e, both clusterds inherited the DEFAULT_MZ_VOLUMES list, which uses a single named volume scratch:/scratch. Docker named volumes are shared across containers by name, so the two clusterds mounted the same /scratch and contended for RocksDB locks at /scratch/storage/upsert/<id>/<worker>/LOCK. This wedged clusterd1: it could never open its upsert RocksDB ("Resource temporarily unavailable" on the LOCK file), entered Stalled health with "Failed to rehydrate state", broadcast suspend-and-restart, and looped retry-fail-suspend-restart for the entire run. The continuous restart loop drove the upsert feedback-driven snapshot replay path in ways that produced visibly wrong durable state for the source — exactly the upsert-state-rehydrates-correctly assertions caught in the 2026-05-12 05:39 UTC Antithesis report. Fix: give each clusterd its own per-instance named volume for /scratch. The other volumes stay shared because they don't take exclusive locks. Also patch export-compose.py to auto-declare any service-referenced named volume at the top level — Composition only auto-declares DEFAULT_MZ_VOLUMES, so without this the custom names broke `docker compose config`.
…ker thread pausing
…ed in MySQL 8.4 (WRITESET is the default)
…ksDB uses mem_env (production behavior)
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Forked from #36536