Lion - dapplion

head and reorg event not always emitted

6

`this.chain.recomputeForkChoiceHead()` is called in multiple places beyond importBlock. The importBlock assumes that recomputeForkChoiceHead is only called there, so the head and reorg events are only emitted for head recomputed there...

### Problem description Doing maintenance on a beacon node or validator client can result in brief downtime. Large operators are recommended to include fallback URLs, but a validator still experiences...

De-duplicate payload from persisted beacon blocks

10

### Problem description Since the merge, both execution and Lodestar beacon nodes persist the block's execution payload into the DB. At an average block size of 100Kb, that's about 720...

In unstable metrics show that the time to process a block = seen in gossip until set as head ranges 600-900ms. This includes calling the execution client to notify the...

Use blinded flow in validator by default

8

**Is your feature request related to a problem? Please describe.** - See https://github.com/ChainSafe/lodestar/issues/5226 **Describe the solution you'd like** For blocks created locally, use blinded block by default to prevent having...

Lazy aggregated batch verification

3

**Is your feature request related to a problem? Please describe.** Reduce load for busy gossip channels **Describe the solution you'd like** See https://github.com/status-im/nimbus-eth2/pull/3212 **Describe alternatives you've considered** N/A

Un-subscribe all gossip when reverting to finalized sync

3

Currently we un-subscribe core topics when going to finalized sync https://github.com/ChainSafe/lodestar/blob/2ed2e03d0ca3e2d6e04e503d4e1beb2deedd47a7/packages/lodestar/src/sync/sync.ts#L193-L194 However we keep subnet subscriptions, which are actually the ones taking the bulk of CPU processing. - [ ]...

Not useful after restart, and would prune stale automatically.

**Describe the bug** Fixes a "UX" issue when syncing from weak subjectivity - See issue https://github.com/ethereum/consensus-specs/issues/2566 and suggestion https://github.com/ethereum/consensus-specs/issues/2566#issuecomment-1165996834

Generate valid states and blocks for CI testing

3

**Describe the bug** Current master depends on Infura to download some states and blocks for benchmarking. While this has worked fine before currently Infura timeouts for all requests. The problem...