Make recovery, restart, and identity semantics explicit

Summary#

Multiple fixes target bugs that only appear after an error, restart, serialization hop, or cache lookup, where hidden state assumptions stop matching reality. Robust systems treat lifecycle transitions as first-class: identity should be value-based when equivalence matters, restarted watchers should preserve progress markers, and failure cleanup must leave objects either reconstructable or still safe to call.

Problem#

Stateful components often work on the first pass but break after retries, partial failures, multiprocessing, or restarts because identity, ownership, and continuity rules were never encoded clearly.

Solution#

Define stable value semantics for hashing and caching, support serialization for lazy registries that cross process boundaries, preserve restart watermarks, and ensure cleanup paths reinitialize or guard invalidated collaborators before reuse.

Failure Modes#

Hashing by pointer or address so logically identical values miss caches or maps
Destroying parser or serializer state on one error and then reusing the object without rebuilding it
Restarting watchers or async pipelines without replay continuity, causing missed events or duplicated work

Sources#

https://github.com/tensorflow/tensorflow/pull/123951
https://github.com/tensorflow/tensorflow/pull/123990
https://github.com/tensorflow/tensorflow/pull/123972
https://github.com/tensorflow/tensorflow/pull/123888
https://github.com/tensorflow/tensorflow/pull/123938
https://github.com/tensorflow/tensorflow/pull/123925
https://github.com/tensorflow/tensorflow/pull/123924
https://github.com/tensorflow/tensorflow/pull/123887
https://github.com/tensorflow/tensorflow/pull/123935
https://github.com/tensorflow/tensorflow/pull/123954
https://github.com/tensorflow/tensorflow/pull/123949
https://github.com/tensorflow/tensorflow/pull/123958
https://github.com/huggingface/transformers/pull/47528
https://github.com/huggingface/transformers/pull/47527
https://github.com/huggingface/transformers/pull/47284
https://github.com/huggingface/transformers/pull/47452
https://github.com/huggingface/transformers/pull/47397
https://github.com/huggingface/transformers/pull/47522
https://github.com/huggingface/transformers/pull/47320
https://github.com/huggingface/transformers/pull/46026
https://github.com/huggingface/transformers/pull/47498
https://github.com/huggingface/transformers/pull/47509
https://github.com/microsoft/ML-For-Beginners/pull/1002
https://github.com/microsoft/ML-For-Beginners/pull/1001
https://github.com/microsoft/ML-For-Beginners/pull/1000
https://github.com/microsoft/ML-For-Beginners/pull/994
https://github.com/microsoft/ML-For-Beginners/pull/991
https://github.com/microsoft/ML-For-Beginners/pull/990
https://github.com/microsoft/ML-For-Beginners/pull/989
https://github.com/ClickHouse/ClickHouse/pull/107739
https://github.com/ClickHouse/ClickHouse/pull/111914
https://github.com/ClickHouse/ClickHouse/pull/111913
https://github.com/ClickHouse/ClickHouse/pull/111437
https://github.com/ClickHouse/ClickHouse/pull/111885
https://github.com/ClickHouse/ClickHouse/pull/111899
https://github.com/ClickHouse/ClickHouse/pull/111889
https://github.com/ClickHouse/ClickHouse/pull/111886
https://github.com/ClickHouse/ClickHouse/pull/111887
https://github.com/ClickHouse/ClickHouse/pull/109283
https://github.com/ClickHouse/ClickHouse/pull/102509
https://github.com/vercel/turborepo/pull/13484
https://github.com/vercel/turborepo/pull/13475
https://github.com/vercel/turborepo/pull/13478
https://github.com/vercel/turborepo/pull/13477
https://github.com/vercel/turborepo/pull/13476
https://github.com/vercel/turborepo/pull/13453
https://github.com/vercel/turborepo/pull/13443
https://github.com/vercel/turborepo/pull/13447
https://github.com/vercel/turborepo/pull/13452
https://github.com/vercel/turborepo/pull/13442
mined_at: 2026-07-26T01:34:48Z

Sagwan Revalidation 2026-07-26T02:12:30Z#

verdict: ok
note: 수명주기·값 의미론 원칙은 여전히 최신 관행과 맞아 재사용 가능

Sagwan Revalidation 2026-07-28T09:27:29Z#

verdict: ok
note: 일반적 생명주기/동일성 원칙이라 최근성 문제나 모순이 보이지 않음

Sagwan Revalidation 2026-07-30T13:39:48Z#

verdict: ok
note: 일반 원칙 중심이라 최근성 문제 없고 링크·권장안도 재사용 가능함