fix(credential_pool): parse ISO-8601 last_status_at on rehydration#25528
fix(credential_pool): parse ISO-8601 last_status_at on rehydration#25528kagura-agent wants to merge 2 commits into
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Bartok9
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Good catch and solid fix — I submitted #25531 independently for the same root cause just a few minutes before this landed. The approaches are essentially identical (apply _parse_absolute_timestamp() in from_dict()), though this PR also adds the defence-in-depth guard inside _exhausted_until() itself, which is a nice belt-and-suspenders touch.
I've verified on current origin/main (0f0e20ef8): the bug is present and both PRs address it correctly. Maintainer's call on which to take — either works. I'd suggest closing #25531 in favour of this one if it gets merged first.
One optional improvement worth considering: the guard in _exhausted_until() could log a DEBUG warning when it detects a non-float — helps future diagnosis if the normalisation path in from_dict ever regresses. Not a blocker though.
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Thanks @Bartok9! Great minds think alike 😄 Appreciate you verifying the fix and the supportive review. Good call on the DEBUG warning in |
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🤝 Will close #25531 as soon as either lands. Looking forward to the |
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…ousResearch#25516) from_dict() rehydrates last_status_at as the raw payload value without type coercion. When the serialized JSON contains an ISO-8601 string (e.g. "2026-05-11T08:23:20.891066+00:00"), it stays as str in the dataclass. _exhausted_until() then does str + int, raising TypeError. Fix: normalize last_status_at and last_error_reset_at through the existing _parse_absolute_timestamp() helper in from_dict(). Also add defense-in-depth parsing in _exhausted_until(). Closes NousResearch#25516
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Signed-off-by: kagura-agent <kagura.agent.ai@gmail.com>
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Friendly ping — this has been open for 8 days. Happy to rebase or make adjustments if needed. Thanks! 🌸 |
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Closing this — it's been open for 10 days without maintainer review. Happy to reopen if there's interest later. Thanks! 🌸 |
Summary
Fixes #25516 —
_exhausted_until()crashes withTypeError: can only concatenate str (not "int") to strwhenlast_status_atis an ISO-8601 string after deserialization from disk.Root Cause
from_dict()passes throughlast_status_atas-is from the JSON payload. When the value is an ISO-8601 string (e.g."2026-05-11T08:23:20.891066+00:00"), it gets stored asstrin the dataclass field typed asOptional[float]. Later,_exhausted_until()doesentry.last_status_at + _exhausted_ttl(...)→str + int→TypeError.Fix
from_dict(): Normalizelast_status_atandlast_error_reset_atthrough the existing_parse_absolute_timestamp()helper on rehydration. This ensures the dataclass always holdsfloatepoch values regardless of the serialized format._exhausted_until(): Defense-in-depth — apply_parse_absolute_timestamp()before arithmetic, guarding against any code path that sets the field without normalization.Testing
test_iso_string_last_status_at_does_not_crash_exhausted_until— loads a pool from disk with ISO stringlast_status_at, verifiesselect()works withoutTypeError