PeerDAS Known Issues

[dguenther]

Listing out some known TODOs for PeerDAS, feel free to edit/close this as needed!

• [ ] Implement column reconstruction
• [ ] Implement column backfill
  • [ ] Update advertisedCustodyCount once implemented
• [ ] Update DataColumnsByRoot to new structure
  • PR: #7782
  • Spec PR: https://github.com/ethereum/consensus-specs/pull/4284
• [ ] Fix E2E Tests (dataSerialization errors because it serializes a Promise in unknownBlockInput)
• [ ] Audit validateGossipDataColumns (plural) for spec compliance
• [ ] Check dataColumnsByRange/dataColumnsByRoot for spec compliance
• [ ] Test all syncing algorithms for peerDAS support (WIP by @twoeths, I think)
  • e.g. consider what to do when syncing if you don't have a peer with one of your required columns
• [ ] Only subscribe to relevant column subnets
  • PR: https://github.com/ChainSafe/lodestar/pull/7607
• [ ] Merge @matthewkeil 's block input refactor
  • PR: https://github.com/ChainSafe/lodestar/pull/7474
• [ ] Merge peerDAS to unstable
• [ ] Implement custody sampling spec update (convert SAMPLES_PER_SLOT from columns to groups, no effective change)
  • Spec PR: https://github.com/ethereum/consensus-specs/pull/4251
• [ ] Update beacon-API blob endpoint for Fulu
  • Spec PR: https://github.com/ethereum/beacon-APIs/pull/524 (may end up creating a new endpoint instead)
• [ ] Deprecate blobSidecarsByRange/Root appropriately
  • Spec PR: https://github.com/ethereum/consensus-specs/pull/4286
• [ ] Implement builder-spec changes
  • Spec PR: https://github.com/ethereum/builder-specs/pull/117
• [ ] https://github.com/ChainSafe/lodestar/issues/7658
• [ ] https://github.com/ChainSafe/lodestar/issues/7631
• [ ] Merge or close @matthewkeil metrics PR: https://github.com/ChainSafe/lodestar/pull/7095
• [ ] Merge or close rust-kzg PR: https://github.com/ChainSafe/lodestar/pull/6923
• [ ] Huge gossip job wait time https://github.com/ChainSafe/lodestar/issues/7847
• [ ] Low gossip score https://github.com/ChainSafe/lodestar/issues/7849
• [ ] lodestar does not work well with other clients https://github.com/ChainSafe/lodestar/issues/7856
• [ ] performance issue validating DataColumnSidecar https://github.com/ChainSafe/lodestar/issues/7857
• [ ] Unit test matchBlockWithDataColumns https://github.com/ChainSafe/lodestar/issues/7446
• [ ] p7 penalties on peers https://github.com/ChainSafe/lodestar/issues/7879