Decommissioned stateful leader election#3319
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The new algorithm is choosing leader of (height,round), based on hash(height,round) and weights of validators (public lottery). The new algorithm is enabled via config flag: Consensus.StatelessLeaderElection (false by default). It will be the only option in 6.5. Additional changes: * updated crypto package to include zeroize fix (otherwise it panics under a new compiler) * made consensus tests run against both stateful and stateless leader election. The caveat is that many of the consensus tests are very poor quality and they hardcode the expected leader schedule. To minimize the amount of work, these tests have been adjusted in one of the following ways: a) the test harness looks for a starting round which produces the leader schedule that the test expects; b) the test harness adjusts the weights so that the leader schedule matches what the test expects. * I have manually run the tests outside of the consensus module with StatelessLeaderElection = true, however these are not included in CI.
Switching the default to true, will disable stateful leader election completely in 6.6
pompon0
changed the title
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3319 +/- ##
==========================================
- Coverage 59.19% 58.43% -0.77%
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Files 2097 2085 -12
Lines 172482 209275 +36793
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+ Hits 102106 122282 +20176
- Misses 61532 78187 +16655
+ Partials 8844 8806 -38
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sei-will
approved these changes
Apr 27, 2026
wen-coding
approved these changes
Apr 28, 2026
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will be deployed with 6.6 (at earliest)