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Fix wrong columns getting processed on a CGC change (#7792)

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This PR fixes a bug where wrong columns could get processed immediately after a CGC increase.

Scenario:
- The node's CGC increased due to additional validators attached to it (lets say from 10 to 11)
- The new CGC is advertised and new subnets are subscribed immediately, however the change won't be effective in the data availability check until the next epoch (See [this](ab0e8870b4/beacon_node/beacon_chain/src/validator_custody.rs (L93-L99))). Data availability checker still only require 10 columns for the current epoch.
- During this time, data columns for the additional custody column (lets say column 11) may arrive via gossip as we're already subscribed to the topic, and it may be incorrectly used to satisfy the existing data availability requirement (10 columns), and result in this additional column (instead of a required one) getting persisted, resulting in database inconsistency.
This commit is contained in:
Jimmy Chen
2025-08-07 10:45:04 +10:00
committed by GitHub
parent 9c972201bc
commit 8bc6693dac
27 changed files with 577 additions and 277 deletions
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Makefile
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@@ -279,7 +279,7 @@ lint:
# Lints the code using Clippy and automatically fix some simple compiler warnings.
lint-fix:
EXTRA_CLIPPY_OPTS="--fix --allow-staged --allow-dirty" $(MAKE) lint
EXTRA_CLIPPY_OPTS="--fix --allow-staged --allow-dirty" $(MAKE) lint-full
# Also run the lints on the optimized-only tests
lint-full: