Movses Aslanyan
91afea92a1
All seven services (gateway, ledger, fraud, sanctions, insights, notifier, audit), db/schema.sql plus optional_indexes.sql, scripts/seed.py and smoke.py, the gateway-served frontend, and docker-compose.yml. Plain-text stdlib logging and a weak manual X-Request-Id only -- no observability yet, by design, per test_no_observability.py. Implements all 13 named chaos-flag pathologies from docs/PATHOLOGIES.md behind Redis-backed runtime flags. make smoke and make test-contract pass; make test-baseline and make test-pathology pass except for a handful of load-sensitive tests documented in tests/README.md rather than papered over.
29 lines
1.0 KiB
Python
29 lines
1.0 KiB
Python
"""pool_starvation, row_lock_contention, poison_data -- phase-0-base-project-spec.md
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§7. All three are owned by `ledger`.
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"""
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from common.chaos_flags import is_enabled
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from common.redis_client import redis_client
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# Populated once by scripts/seed.py: account_id -> id of that account's one
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# deliberately NULL-currency transaction (§8). A Redis hash lookup, not a
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# `transactions` scan by account_id -- that column has no supporting index
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# on purpose (§5), and the poison_data pathology shouldn't have to pay for a
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# full-table seq scan on every single request just to find its own trigger.
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POISON_TX_KEY = "poison:tx_by_account"
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async def pool_starvation_enabled() -> bool:
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return await is_enabled("pool_starvation")
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async def row_lock_contention_enabled() -> bool:
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return await is_enabled("row_lock_contention")
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async def poison_data_enabled() -> bool:
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return await is_enabled("poison_data")
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async def find_poison_transaction_id(account_id: str) -> str | None:
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return await redis_client.hget(POISON_TX_KEY, account_id)
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