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docs(lancedb): mark the husk sweep removable once lance#8322 ships (#399) 

Upstream merged the fix on 2026-08-06: cleanup now removes the directories it
empties, under the same 7-day / delete_unverified policy this sweep
reimplements. It is not in any release yet (lancedb 0.34.0 embeds lance 8.0.0;
the merge sits ahead of v11.0.0-beta.2), so the sweep stays -- but the next pin
carrying it should delete this rather than keep a second copy of upstream's
rule. That upgrade also collapses the documented horizon from ~14 days to ~7:
lance drops the directory in the same pass that empties it, so our age gate
stops stacking on top of theirs.

Co-authored-by: zhanghui <zhanghui@shanda.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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10
src/everos/core/persistence/lancedb/repository.py
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@ -103,6 +103,16 @@ a day sits four orders of magnitude below it (tens of MB). Platform-wise only
ext4 has a fixed inode budget at all; APFS and xfs allocate dynamically, and ext4 has a fixed inode budget at all; APFS and xfs allocate dynamically, and
Windows is out of scope. The knob to reach for if this ever does bite is the Windows is out of scope. The knob to reach for if this ever does bite is the
optimize cooldown, not this threshold — see there. optimize cooldown, not this threshold — see there.
**When to remove this sweep** — lance-format/lance#8322 (merged 2026-08-06,
not in any release as of lancedb 0.34.0 / lance 8.0.0 — the merge sits ahead of
v11.0.0-beta.2) makes lance's own cleanup remove the directories it empties,
under this same 7-day / ``delete_unverified`` policy. Once a release carrying
it is pinned, delete :func:`_remove_empty_index_dirs` and its call site rather
than keep a second implementation of upstream's rule. That upgrade also halves
the horizon above: lance drops the directory in the pass that empties it, so
our age gate stops stacking on top of theirs and the steady state goes from
~14 days back to ~7.
""" """
_HUSK_SWEEP_TIMEOUT_SECONDS = 60.0 _HUSK_SWEEP_TIMEOUT_SECONDS = 60.0