fix(validator): realign persisted scores to metagraph size on load_state#1607
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RealDiligent wants to merge 4 commits into
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fix(validator): realign persisted scores to metagraph size on load_state#1607RealDiligent wants to merge 4 commits into
RealDiligent wants to merge 4 commits into
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load_state() restored scores/hotkeys from state.npz without resizing to the current metagraph.n, causing IndexError or misaligned on-chain weights after subnet growth or shrink. Realign persisted scores on load and consolidate metagraph resize handling in resync_metagraph(). Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
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CI validated on fork (964 tests passed, lint/pyright clean): https://github.com/RealDiligent/gittensor/actions/runs/28982027511 https://github.com/RealDiligent/gittensor/actions/runs/28982026612 |
Co-authored-by: Cursor <cursoragent@cursor.com>
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Fixes #1606
Summary
Fixes validator crashes and misaligned weight emission after a subnet resize followed by validator restart.
Root cause
load_state()restoredscores/hotkeysfromstate.npzwithout validating length against the currentmetagraph.n.resync_metagraph()only handled growth at runtime and could index past the live metagraph on shrink.Fix approach
_align_scores_to_metagraph()to resize persisted scores, zero replaced hotkeys, and matchmetagraph.n.load_state()andresync_metagraph().Impact
Validators survive routine subnet resizes across restarts instead of crashing or emitting wrong weights.
Risk / tradeoffs
Test plan
test_align_scores_grows_with_metagraphtest_align_scores_shrinks_with_metagraphtest_align_scores_zeros_replaced_hotkeytest_load_state_realigns_persisted_scores_to_current_metagraphTests+Lintworkflows