335d7ce1dc
Merge pull request #2446 from ethereum/SyncCommitteeSignature-to-SyncCommitteeMessage
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Rename `SyncCommitteeSignature` to `SyncCommitteeMessage` to avoid name conflicts
2021-06-07 07:06:14 -06:00
f5ab017997
Merge pull request #2467 from ethereum/bump-mypy-0_800
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Bump `mypy` to v0.812
2021-06-04 12:24:46 -06:00
1d5c4ecffb
Merge pull request #2453 from ethereum/vbuterin-patch-11
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Modify sync committee logic and parameters to reduce variance
2021-06-04 12:23:16 -06:00
44f6453ce3
Merge pull request #2452 from Nashatyrev/fix/no-committee-for-shard-case
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[Sharding] Handle the case when committee count < active shards
2021-06-04 18:19:33 +02:00
f679a0a086
Merge pull request #2455 from ethereum/sharding-state
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New union-based shard headers/commitments representation
2021-06-04 18:18:43 +02:00
0ae9a85b17
Adopt shard_blob gossip validation on top of PR #2455 : here the `compute_committee_index_from_shard` raises an error if no committee assigned to a shard
2021-06-04 18:48:09 +03:00
071abfa846
Revert beacon-chain changes as they are handled in PR #2455
2021-06-04 18:44:35 +03:00
116c1c0f3a
Merge remote-tracking branch 'EF/dev' into fix/no-committee-for-shard-case
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# Conflicts:
# specs/sharding/p2p-interface.md
2021-06-04 18:43:12 +03:00
9050897cb2
fix committee work status and commitment references
2021-06-03 19:11:47 +02:00
d4f6459108
Define missing header_root
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Co-authored-by: Anton Nashatyrev <Nashatyrev@users.noreply.github.com>
2021-06-03 18:00:51 +02:00
c0af420130
shard work status enum, prefix instead of suffix + move full committee balance init line
2021-06-03 17:32:35 +02:00
45d554aee8
Merge branch 'dev' into SyncCommitteeSignature-to-SyncCommitteeMessage
2021-06-03 22:13:53 +08:00
049c18b6c4
Bump mypy to v0.812 (latest)
2021-06-03 20:49:29 +08:00
989d33f6ec
Bump mypy to v0.800. This release adds Python 3.9 support.
2021-06-03 17:30:43 +08:00
b3f2635ce7
Merge pull request #2466 from terencechain/patch-123
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Altair: missing `block_root` in `SyncCommitteeSignature`
2021-06-02 16:09:13 -06:00
45a71eb267
line length lint
2021-06-02 15:58:51 -06:00
79f919eb19
Merge pull request #2464 from ethereum/JustinDrake-patch-7
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Minor Altair cosmetic polishing
2021-06-02 15:51:35 -06:00
693b2283b0
Merge pull request #2465 from ethereum/sync-committee-penalty-tests
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Fix sync committee penalty tests on #2453
2021-06-02 15:46:43 -06:00
65f48178b7
Include block_root in SyncCommitteeSignature
2021-06-02 14:41:24 -07:00
d598c09876
Merge pull request #2443 from ralexstokes/fix-altair-transition-test
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Fix bug in Altair transition tests with missing state root
2021-06-02 11:13:17 -06:00
417dda8326
fix committee index assertion
2021-06-01 22:38:36 +02:00
67809e76e1
Fix tests
2021-06-02 01:40:54 +08:00
c115fa9a86
make it pass the linter
2021-06-02 01:22:27 +08:00
b8d426b028
Align Sync Committee Tests to Specs
2021-06-02 01:22:26 +08:00
d87e076ce3
Minor Altair cosmetic polishing
2021-06-01 17:05:12 +01:00
b298d4d63d
Update mainnet preset file
2021-06-01 22:09:31 +08:00
65f8d3d296
Merge branch 'dev' into SyncCommitteeSignature-to-SyncCommitteeMessage
2021-06-01 22:05:10 +08:00
2545c3e2d0
update pending header weights after epoch transition, fix committee index loop, fix header processing status assert, add todos for Altair-like shard attestation rewards
2021-05-31 18:55:08 +02:00
5a235d0251
Review suggestions
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Co-authored-by: Anton Nashatyrev <Nashatyrev@users.noreply.github.com>
2021-05-31 17:03:06 +02:00
d857935d6c
Merge pull request #2459 from ethereum/pyspec-build-var-fix
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Pyspec builder internal config formatting fix
2021-05-31 15:28:54 +02:00
8f005c18e5
when an untyped var is not the last config var, it needs a comma
2021-05-31 15:20:50 +02:00
bb3d581b13
update shard processing naming and doc structure
2021-05-29 23:55:16 +02:00
31f48b7b3b
update sharding presets
2021-05-29 22:39:25 +02:00
3665dbea8b
name (slot, shard) union wrapper ShardWork
2021-05-29 21:28:00 +02:00
042ca57a61
Merge pull request #2458 from ethereum/ralexstokes-patch-1
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Clarify language on ssz Unions
2021-05-28 20:00:30 -07:00
fa09d89648
Update simple-serialize.md
2021-05-28 18:13:22 -07:00
482b028b88
Merge pull request #2436 from terencechain/patch-122
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Sharding p2p: minor fixes
2021-05-28 22:09:58 +02:00
12335a2702
Merge pull request #2456 from ralexstokes/clean-up-ssz-null
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Clean up SSZ `null`
2021-05-28 22:05:24 +02:00
72215412fa
For slow shard confirmation, assuming it is available via DAS, we could confirm the best pending header
2021-05-28 21:56:13 +02:00
b763416a6b
remove unnecessary defn of `null`
2021-05-28 12:27:29 -07:00
ef9b7125c2
whitespace
2021-05-28 12:27:19 -07:00
38a0f4f211
update to wrap the union, clean up initialization and typing
2021-05-28 21:27:05 +02:00
f08cc15b8d
Merge pull request #2445 from ethereum/union-type-update
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Union type update
2021-05-28 20:20:52 +02:00
e5521af1f8
new union-based shard headers/commitments representation
2021-05-28 20:18:29 +02:00
d11586122f
update remerkleable, union support
2021-05-28 01:02:08 +02:00
b0500c3de1
Update specs/altair/beacon-chain.md
2021-05-27 12:06:01 -07:00
3cd842a94d
Update specs/altair/beacon-chain.md
2021-05-27 11:39:29 -07:00
a89ecced1c
Modify sync committee logic and parameters to reduce variance
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Sync committee rewards as currently implemented significantly increase variance in proposer rewards: https://github.com/ethereum/eth2.0-specs/issues/2448
For example, if there are 200000 validators (6.4m ETH staked), then during each 1/4-eek (~54 hour) period there is a chance of 512/200000 that a validator will get accepted into the sync committee, so on average that will happen once every 200000/512 * 1/4 = 97.6 eeks, or close to two years. The payout of this "lottery" is 1/8 of that, or ~12.2 eeks (a bit less than four months) of revenue. This is much more severe than block proposing (a chance of 1/200000 per slot, or a lottery worth ~0.38 eeks of revenue once every ~3.05 eeks).
This PR makes three changes to cut make the sync committee lottery less drastic and bring variance closer in line with what is available from block proposing:
* Reduce the `SYNC_REWARD_WEIGHT` from 8 to 2
* Add a penalty for not participating in the sync committee, so that despite the first change the total net reward for participating vs not participating is only cut down by 2x
* Reduce the sync committee period from 1/4 eek to 1/8 eek (~27 hours)
With these three factors combined, the lottery reduces to ~1.5 eeks of revenue, on average occurring every ~48 eeks. Validators who are maximally unlucky (ie. never become part of a sync committee) only lose ~3.12% of their rewards instead of ~12.5%.
The compromises that this approach makes are:
* In the extreme case where >50% of proposers are operating efficiently, being in a sync committee becomes a net burden. However, this should be extremely rare, and in such cases validators would likely be suffering inactivity leak penalties anyway.
* Incentive to participate in a sync committee decreased by 2x (but this is IMO an improvement; sync committees are _not_ as important as proposals and deserve to have lower rewards)
* Minimum data syncing needed to maintain a light client increases by 2x (from 24 kB per 54 hours to 24 kB per 27 hours). A burden for on-chain light clients, but still insignificant for others.
2021-05-27 09:02:51 -06:00
d50a12cb18
Merge pull request #2449 from ethereum/fix-sharding-comments
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add/update comments on shard blob/header/reference body field
2021-05-27 08:06:32 -06:00
1ea1d2259f
Merge pull request #2451 from paulhauner/patch-27
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Add clock disparity tolerance for sync subnets
2021-05-27 08:04:30 -06:00
Danny Ryan
Diederik Loerakker
Anton Nashatyrev
Hsiao-Wei Wang
terence tsao
Potuz
Justin
Alex Stokes
vbuterin