47f1f7ff1a
The new format is based on compressed CSV files in two channels: * Detailed per-epoch data * Aggregated "daily" summaries The use of append-only CSV file speeds up significantly the epoch processing speed during data generation. The use of compression results in smaller storage requirements overall. The use of the aggregated files has a very minor cost in both CPU and storage, but leads to near interactive speed for report generation. Other changes: - Implemented support for graceful shut downs to avoid corrupting the saved files. - Fixed a memory leak caused by lacking `StateCache` clean up on each iteration. - Addressed review comments - Moved the rewards and penalties calculation code in a separate module Required invasive changes to existing modules: - The `data` field of the `KeyedBlockRef` type is made public to be used by the validator rewards monitor's Chain DAG update procedure. - The `getForkedBlock` procedure from the `blockchain_dag.nim` module is made public to be used by the validator rewards monitor's Chain DAG update procedure. |
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| .. | ||
| README.md | ||
| attestation_pool.nim | ||
| block_clearance.nim | ||
| block_dag.nim | ||
| block_pools_types.nim | ||
| block_quarantine.nim | ||
| blockchain_dag.nim | ||
| exit_pool.nim | ||
| spec_cache.nim | ||
| sync_committee_msg_pool.nim | ||
README.md
Consensus object pools
This folder holds the various consensus object pools needed for a blockchain client.
Object in those pools have passed the "gossip validation" filter according to specs:
- blocks: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#beacon_block
- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#voluntary_exit
- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#attester_slashing
- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/phase0/p2p-interface.md#proposer_slashing
After "gossip validation" the consensus objects can be rebroadcasted as they are optimistically good, however for internal processing further verification is needed. For blocks, this means verifying state transition and all contained cryptographic signatures (instead of just the proposer signature). For other consensus objects, it is possible that gossip validation is a superset of consensus verification (TODO).
The pools presenet in this folder are:
- block_pools:
- block_quarantine: for seemingly valid blocks that are on a fork unknown to us.
- block_clearance: to verify (state_transition + cryptography) candidate blocks.
- blockchain_dag: an in-memory direct-acyclic graph of fully validated and verified blockchain candidates with the tail being the last finalized epoch. A block in the DAG MUST be in the fork choice and a block in the fork choice MUST be in the DAG (except for orphans following finalization). On finalization non-empty epoch blocks are stored in the beacon_chain_db.
- attestation_pool: Handles the attestation received from gossip and collect them for fork choice.
- exit_pool: Handle voluntary exits and forced exits (attester slashings and proposer slashings)