feat(delphi): Python math poller service (phase 1) — Clojure math-container replacement#2625
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…tainer replacement The poller half of MATH_POLLER_DESIGN.md phase 1: a Python service that replaces the Clojure math container's production duties (vote/mod watermark polling, per-zid serialized compute, four-table Postgres writes). - polismath/poller/service.py: MathPollerService — vote + moderation watermark loops mirroring poller.clj:12-37 (strict >, max-of-batch advancement, POLL_FROM_DAYS_AGO=10 boot window, allowlist/blocklist), per-zid engine chain update_votes -> update_moderation -> recompute() with load-or-init from math_main + full-history rebuild (conv_man.clj:188-207 analog), error path dump -> one retry -> park (errorconv analog). - polismath/poller/worker_pool.py: per-zid FIFO + single-owner flag (strict serialization), take-all!/split-batches coalescing (votes before moderation), bounded cross-zid ThreadPoolExecutor. - polismath/poller/math_writer.py: one math_tick per cycle shared across math_main / math_bidtopid / math_ptptstats (conv_man.clj:158-169); bidToPid positionally aligned with base-clusters.id ascending (prep-bidToPid conv_man.clj:35-40; server participants.ts:33-51). - scripts/math_poller.py CLI (--once / run-forever, SIGTERM/SIGINT) + docker-compose service delphi-math-poller (profile delphi-math, shadow MATH_ENV by default) + example.env documentation. - tests/poller/: 44 unit tests (watermark, coalescing, serialization thread-safety, writer SQL incl. caching_tick MAX+1 subquery + shared tick, bidToPid shape, allow/block, engine-mode passthrough, error path, load-or-init restoration boundary) + 1 opt-in integration test (throwaway postgres:17 on port 5435): end-to-end poll->compute->write, shadow math_env isolation, shared math_tick, caching_tick=1 on first write, restart-resumes. Cutover phasing per MATH_POLLER_DESIGN.md: this ships SHADOW mode only — writes under a math_env the server does not read. The flip is gated on the blob-shape alignment work (to_dict vs prep-main deltas catalogued by the H-B cross-language comparison). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> commit-id:18c7048f
This was referenced Jul 18, 2026
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The poller half of MATH_POLLER_DESIGN.md phase 1: a Python service that
replaces the Clojure math container's production duties (vote/mod watermark
polling, per-zid serialized compute, four-table Postgres writes).
loops mirroring poller.clj:12-37 (strict >, max-of-batch advancement,
POLL_FROM_DAYS_AGO=10 boot window, allowlist/blocklist), per-zid engine chain
update_votes -> update_moderation -> recompute() with load-or-init from
math_main + full-history rebuild (conv_man.clj:188-207 analog), error path
dump -> one retry -> park (errorconv analog).
serialization), take-all!/split-batches coalescing (votes before moderation),
bounded cross-zid ThreadPoolExecutor.
math_main / math_bidtopid / math_ptptstats (conv_man.clj:158-169);
bidToPid positionally aligned with base-clusters.id ascending
(prep-bidToPid conv_man.clj:35-40; server participants.ts:33-51).
docker-compose service delphi-math-poller (profile delphi-math, shadow
MATH_ENV by default) + example.env documentation.
thread-safety, writer SQL incl. caching_tick MAX+1 subquery + shared tick,
bidToPid shape, allow/block, engine-mode passthrough, error path,
load-or-init restoration boundary) + 1 opt-in integration test (throwaway
postgres:17 on port 5435): end-to-end poll->compute->write, shadow math_env
isolation, shared math_tick, caching_tick=1 on first write, restart-resumes.
Cutover phasing per MATH_POLLER_DESIGN.md: this ships SHADOW mode only —
writes under a math_env the server does not read. The flip is gated on the
blob-shape alignment work (to_dict vs prep-main deltas catalogued by the H-B
cross-language comparison).
Co-Authored-By: Claude Fable 5 noreply@anthropic.com
commit-id:18c7048f
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