45d554aee8
Merge branch 'dev' into SyncCommitteeSignature-to-SyncCommitteeMessage
2021-06-03 22:13:53 +08:00
b3f2635ce7
Merge pull request #2466 from terencechain/patch-123
...
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
65f48178b7
Include block_root in SyncCommitteeSignature
2021-06-02 14:41:24 -07:00
d87e076ce3
Minor Altair cosmetic polishing
2021-06-01 17:05:12 +01:00
65f8d3d296
Merge branch 'dev' into SyncCommitteeSignature-to-SyncCommitteeMessage
2021-06-01 22:05:10 +08:00
b0500c3de1
Update specs/altair/beacon-chain.md
2021-05-27 12:06:01 -07:00
4d5bc83af4
Re-org files
2021-05-27 11:59:15 -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
...
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
48f989070d
Remove naughty space
2021-05-27 15:30:44 +10:00
103d029a1a
Add clock disparity tolerance for sync subnets
2021-05-27 15:28:51 +10:00
a08d23189e
Update specs/altair/validator.md
...
Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>
2021-05-26 15:51:22 -07:00
a25bc832b9
Update section headers
2021-05-26 03:01:38 +08:00
0142978b60
Rename `SyncCommitteeSignature` to `SyncCommitteeMessage`
2021-05-26 02:36:54 +08:00
41ca149429
Explicitly define `bls.AggregatePKs`
2021-05-24 11:56:10 -07:00
e50d8d4391
Merge branch 'dev' into config-rework
2021-05-20 23:31:49 +02:00
c03c72a543
Altair fork: add a link
2021-05-18 13:50:46 -07:00
ef8d6003d3
fix inactivity penalties markdown table
2021-05-18 10:07:35 +02:00
e4593d2d0c
update with configs<>presets separation
2021-05-18 09:55:20 +02:00
7689ebb2bd
Altair constant/preset/config separation
2021-05-18 09:28:09 +02:00
a7344b3ee1
Fix `PARTICIPATION_FLAG_WEIGHTS` to use correct head weight
2021-05-17 21:35:43 -07:00
c87333face
minor review from dankrad on release pr
2021-05-14 10:05:54 -06:00
86792b9232
Merge pull request #2411 from ethereum/order-indices
...
ensure indices are ordered [source, target, head] everywhere
2021-05-14 14:38:26 +02:00
160b704f4a
ensure indices are ordered source, target, head everywhere
2021-05-14 06:19:29 -06:00
5dd29b6659
fix tests and minor copy edit
2021-05-14 06:15:48 -06:00
1310105174
Return non-duplicated sync committee subnets
2021-05-13 16:22:28 -07:00
d38af7a158
Merge branch 'dev' into vbuterin-patch-11
2021-05-13 13:39:05 -06:00
699a3f837e
pr feedback
2021-05-13 13:38:43 -06:00
a52565aa81
add random altair fork tests for better translation coverage + pr review
2021-05-13 13:21:43 -06:00
a2c8e0e6c6
Merge branch 'dev' into translate-participation-test
2021-05-13 06:33:06 -06:00
4a91c93962
add epoch processing tests for inactivity udpates
2021-05-12 15:06:32 -06:00
24f6e1e99f
Merge branch 'dev' into vbuterin-patch-11
2021-05-12 12:42:46 -06:00
a469b467ff
Merge branch 'dev' into keep-inactivity-function
2021-05-12 12:27:15 -06:00
5188671816
Update specs/altair/beacon-chain.md
...
Co-authored-by: dankrad <dankrad@ethereum.org>
2021-05-12 12:18:35 -06:00
a0f86d19d3
Merge pull request #2407 from ethereum/ralexstokes-patch-1
...
Update validator guide with restricted sync committee computation
2021-05-12 12:18:06 -06:00
4286f85a68
Update validator guide with restricted sync committee computation
2021-05-12 11:05:41 -07:00
a8791f04c7
'get_sync_committee -> get_next_sync_committee
2021-05-12 09:44:13 -06:00
1a7aa898ab
Merge branch 'dev' into sync-seed
2021-05-12 08:46:11 -06:00
dff12dd644
Merge pull request #2400 from ethereum/sync-committee-off-by-1
...
add logic for handling sync committee off by one issue
2021-05-12 08:45:05 -06:00
6371707779
Apply suggestions from code review
...
Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>
2021-05-12 08:40:34 -06:00
8e07ece492
Minor rephrase
2021-05-12 14:11:33 +08:00
8bb0531f58
only give counter-weight penalty if leak. TMP
2021-05-11 16:23:31 -06:00
09cefa03f3
remov sync signature todo
2021-05-11 16:07:24 -06:00
468f42c545
Merge branch 'simplify-sync-committee-calc' into sync-seed
2021-05-11 16:03:19 -06:00
200c049778
fix seed calc issue
2021-05-11 15:55:33 -06:00
2747882776
use current_Epoch seed when calculating next_sync_committee
2021-05-11 15:18:18 -06:00
43ba615b75
Apply suggestions from code review
2021-05-11 14:13:22 -06:00
859a7d743e
Only allow sync committee period calculation at period boundaries
2021-05-11 12:42:21 -07:00
f328f77e65
clarify fork upgrade conditions
2021-05-11 10:58:45 -07:00
a9cc036184
remove timely_head penalty
2021-05-11 11:48:26 -06:00
e31a2af87b
remove extra if
2021-05-11 08:15:04 -06:00
b1d0364105
Merge branch 'dev' into vbuterin-patch-11
2021-05-11 08:12:27 -06:00
3c609e02ea
pr feedback
2021-05-11 07:28:24 -06:00
a6b8574962
test
2021-05-10 16:18:42 -06:00
85198fabfa
lint
2021-05-10 13:26:43 -06:00
d8e2d19ecc
spelling
2021-05-10 13:01:31 -06:00
ff706e5c7a
add logic for handling sync committee off by one issue
2021-05-10 12:57:11 -06:00
1494fe6ace
add get_inactivity_penalty_deltas back in
2021-05-10 12:21:49 -06:00
cd78425570
lint
2021-05-10 10:30:47 -06:00
95e2aa6471
Merge branch 'dev' into dankrad-altair-review
2021-05-10 10:23:38 -06:00
dd9fb06d25
Merge branch 'dev' into vbuterin-patch-12
2021-05-10 07:38:32 -06:00
b336b710e9
Update specs/altair/beacon-chain.md
...
Co-authored-by: vbuterin <v@buterin.com>
2021-05-07 16:48:16 -07:00
d1bedbfbec
Update inactivity penalty deltas processing
...
Two main changes:
1. Inactivity scores are modified to decrease slowly for inactive validators when we are not in a leak, and quickly for active validators
2. The inactivity penalties are applied even not during a leak (note that inactivity _scores_ decrease when outside of a leak)
This has the effect that the inactivity leak "overshoots" the target of finalizing again, and keeps leaking balances a bit more. For inactive validators, this PR sets post-leak recovery to happen 3x faster than the during-leak increase, so if a validator loses 3% during a leak, if they stay offline they should expect to lose another 1% until their score decreases back to zero.
2021-05-07 11:05:27 -07:00
04a9595415
Add notes about sync committee stability
2021-05-07 10:06:44 -07:00
86104ea361
Use stable sync committee indices when processing block rewards
2021-05-07 09:55:21 -07:00
2fc68c451e
Update specs/altair/beacon-chain.md
...
Co-authored-by: Alex Stokes <r.alex.stokes@gmail.com>
2021-05-06 22:55:55 +01:00
ba2c717bf1
Remove PARTICIPATION_FLAGS
2021-05-06 22:55:17 +01:00
637cf0743c
Merge pull request #2376 from ralexstokes/adjust-sync-committee-subnet-count
...
Adjust subnet count to reflect smaller sync committees
2021-05-06 12:51:24 -06:00
b979ea144a
Merge pull request #2378 from ralexstokes/update-altair-sync-protocol
...
Updates to Altair light client sync protocol
2021-05-06 12:50:52 -06:00
13409dc1bc
Merge branch 'dev' into adjust-sync-comm-params
2021-05-06 12:43:11 -06:00
609172d790
Merge pull request #2370 from ralexstokes/simplify-sync-committee-aggregates
...
Simplify sync committee aggregates
2021-05-06 12:38:49 -06:00
4c73fec88e
convert `LightClientStore` to python object instead of SSZ object
...
this avoids the type overhead of having to define a max size for
the object's data and skips the overhead of serialization/consensus
for a type that does not need it
2021-05-06 10:52:48 -07:00
81a8c2748f
Integrate get_inactivity_penalty_deltas into reward computation for better readability
2021-05-06 13:03:26 +01:00
cf724daa7a
No inactivity penalty for untimely head
2021-05-06 12:42:05 +01:00
cbf9f85537
Remove duplicate inactivity leak
2021-05-06 12:28:18 +01:00
ea6c042918
Altair: carry-over prev epoch participation
2021-05-06 10:55:10 +10:00
b041a9b0d6
Further flag_index revert
2021-05-05 22:22:32 +01:00
77524036f5
Revert "Flags to BitVector"
...
This reverts commit 786e611c71
2021-05-05 22:02:37 +01:00
55471bc5d4
Revert "BitVector -> Bitvector"
...
This reverts commit df6bd1b6c3
2021-05-05 21:58:03 +01:00
687641a79b
Remove extra variable
2021-05-05 21:55:36 +01:00
227d1007e6
Update toc
2021-05-05 20:09:14 +01:00
a382cf6d5c
Refactor participation flag list
2021-05-05 20:04:06 +01:00
238a9b03fc
Correct confusing comments in "get_sync_committee_indices"
2021-05-05 18:09:36 +01:00
a2cf833437
Update specs/altair/beacon-chain.md
...
Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>
2021-05-05 09:32:28 -07:00
ded6d5bad4
Merge pull request #2377 from ralexstokes/altair-whitespace
...
clean up whitespace on altair files
2021-05-05 20:44:15 +08:00
6a9b3671f0
Fix the type of `EPOCHS_PER_SYNC_COMMITTEE_PERIOD` and update the config files
2021-05-05 19:53:37 +08:00
d383a14213
Fix ToC
2021-05-05 19:47:26 +08:00
df6bd1b6c3
BitVector -> Bitvector
2021-05-05 12:26:37 +01:00
786e611c71
Flags to BitVector
2021-05-05 12:05:32 +01:00
b310482bce
Update specs/altair/beacon-chain.md
2021-05-04 17:19:51 -07:00
9dcdbafba3
Reorganization of config params to put sync committee in one section
...
This may be marginally "cleaner" than the previous approach, keeping constants with the same topic together.
2021-05-04 17:19:15 -07:00
a562f2aeb4
"toward" -> "closer to" for penalty adjustments
...
Makes it clearer that even the Altair values are not final
2021-05-04 17:05:15 -07:00
3b80324119
Compute `LIGHT_CLIENT_UPDATE_TIMEOUT` in lieu of maintaining a constant
2021-05-04 13:47:46 -07:00
7a168be862
allow fault tolerance equal to threshold, not just above
2021-05-04 13:25:34 -07:00
eae64fd18c
clean up whitespace on altair files
2021-05-04 12:43:21 -07:00
7d236561bd
adjust subnet count to reflect smaller sync committees
2021-05-04 12:41:19 -07:00
9c3d5982cf
add documentation about duplicate pubkeys
2021-05-04 12:20:48 -07:00
7b33c1119a
simplify sync committee pubkey aggregation in altair
2021-05-04 12:19:33 -07:00
0438f2f27c
whitespace
2021-05-04 12:19:33 -07:00
Hsiao-Wei Wang
Danny Ryan
terence tsao
Justin
Alex Stokes
vbuterin
Paul Hauner
protolambda
dankrad
Dankrad Feist
Michael Sproul