73e75e3e69
N/A
Found this issue in sepolia. Note: the custody requirement for this node is 100.
```
Oct 14 11:25:40.053 DEBUG Reconstructed columns count: 28, block_root: 0x4d7946dec0ab59f2afd46610d7c54af555cb4c2851d9eea7d83dd17cf6e96aae, slot: 8725628
Oct 14 11:25:45.568 WARN Internal availability check failure block_root: 0x4d7946dec0ab59f2afd46610d7c54af555cb4c2851d9eea7d83dd17cf6e96aae, error: Unexpected("too many columns got 128 expected 100")
```
So if any of the block components arrives late, then we reconstruct all 128 columns and try to add it to da cache and have more columns than needed for availability in the cache.
There are 2 ways I can think of fixing this:
1. pass only the required columns to the da cache after reconstruction here 60df5f4ab6/beacon_node/beacon_chain/src/data_availability_checker.rs (L647-L648)
2. Ensure that we add only columns that we need to sample in the da cache. I think this is safer since we can add columns to the cache from multiple code paths and this fixes it at the source.
~~This PR implements (2).~~ Thought more about it, I think (1) is cleaner since we filter gossip and rpc columns also before calling `put_kzg_verified_data_columns`/
Co-Authored-By: Pawan Dhananjay <pawandhananjay@gmail.com>
Lighthouse: Ethereum consensus client
An open-source Ethereum consensus client, written in Rust and maintained by Sigma Prime.
Overview
Lighthouse is:
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- Fully open-source, licensed under Apache 2.0.
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- Built in Rust, a modern language providing unique safety guarantees and excellent performance (comparable to C++).
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