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April 23, 2020 14:55
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Agenda: https://github.com/ethereum/eth2.0-pm/issues/145 | |
Nimbus | |
- Core | |
- Switched our testnet1 to mainnet. | |
- Perf improvement to do, in particular repeated hashTreeRoot | |
- Stack overflow as the beacon state is huge | |
- Update/rewind states to apply state transition on blocks coming from the network | |
-> concern about DOS vector | |
- Networking | |
- more reliable syncing | |
- Debugging Discovery and Libp2p | |
- Memory leaks in networking/streams: solved one in libp2p, another to track down | |
- Auditing: | |
- removing stale code, improving handling of errors | |
- Interop: | |
- Fixed a bug of different genesis between Nimbus and Lighthouse | |
- Discovery is working but can’t talk yet | |
- Tried to run Prysm locally still WIP | |
——————————————— | |
Release schedule | |
—> Everything under 0.11 will be backward compatible (except for a bug that will be fixed) | |
-> epoch-basis instead of slot basis for (?) | |
-> Release today | |
—> 0.12 for IETF draft 7 of the hash-to-curve | |
-> will include non-substantive type fixes | |
-> additional validation will be integrated in the fork choice | |
0.12 not interoperable with 0.11 | |
-> maybe with fork choice tests | |
-> might come with modified rewards & penalties tests (bug in rewards & penalties in Prysm/Lighthouse) | |
-> function will probably be rewritten and split so that tests are with more granularity | |
-> proposal in 24 hours | |
-> Topaz testnet: will maintain a fork for interop | |
Testing | |
Proto - The rewards/penalties: doesn’t affect users, for different types of (?) you can’t get slightly different rewards. —> Rewards are slightly higher than they should be. | |
nimbus, pyspec, zcli also impact | |
Network testing | |
Rumour updated for new RPC types, clients can start testing with this now. | |
For testing 7+ clients instead of instrumenting all clients will take an approach more similar to the current consensus tests | |
Beacon Fuzz | |
Found 5 bugs on Nimbus including stack overflow | |
Found 2 bugs 2 bugs on zrnt | |
Found SSZ deserialisation bug in Lighthouse | |
Have been using HongFuzz | |
—> Risky to treat beaconstate as a trusted structure | |
especially if we use warp sync in the future | |
——————————————— | |
Client updates | |
Lodestar: | |
Spec compliance, passing 0.11 tests | |
Gaps are Snappy compression and ENR | |
Prysm: | |
Topaz testnet, 121k validators | |
thousands (?) epochs so far since Friday | |
didn’t skip finality except 1 | |
Can sync with lighthouse until epoch 1 (consensus bug in Prysm) | |
Great feedback, focus on (?) and UX | |
Teku: | |
JVM libp2p Noise interoperable with lighthouse | |
Protoarray fork choice implemented | |
Hot state management rework to keep fully in memory | |
Focus: finishing network changes. | |
Trinity: | |
Steady progress on v0.11 testnet | |
internal changes to the fork choice | |
Update BLS to | |
Nimbus | |
Comment by Paul on update/rewind | |
- Skip signature verification when applying blocks (for blocks from cold storage) | |
saves a significant amount of time | |
Lighthouse | |
Launched new testnet | |
Master is now 0.11.1 state transition | |
Almost fully compatible (networking spec to do) | |
Learning Ansible to automate the testnet (https://github.com/sigp/lighthouse-ansible/ ) | |
sync with Prysm | |
RPC working | |
Rust new futures “stable futures” | |
Wanted to implement safe-arithmetic to have the implementation panic-free. | |
——————————————— | |
Afr Schoe | |
—> 0.11 | |
——————————————— | |
Research updates | |
TXRX: | |
- monitoring tool for Topaz | |
- JIT problems of EE | |
- Transpiler for pyspecs to test fork choice | |
- Disc v5 research | |
LMD votes of attestations not being consistent | |
https://github.com/ethereum/eth2.0-specs/pull/1742 | |
Fork choice testing should be in next updates of spec | |
Orchestrated attack | |
Vitalik | |
Will | |
- Eth1x, nothing new since last announcement | |
Getting more data to evaluate how to partition Eth1 transactions if split across shards | |
Axic | |
- Writeup coming | |
Hsiao-Wei | |
-> Time to stabilise phase 1 spec | |
——————————————— | |
API call | |
Marin: small API combined | |
Danny’s goal: have them for public review by next week | |
——————————————— | |
Spec discussion | |
Vitalik: discussion on phase 1 | |
——————————————— | |
Open discussion | |
Preston: release schedule | |
0.11.2 today (backward compatible) | |
0.12.x pending hash to curve (imminent) | |
Afterwards: critical security fixes |
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