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grandpa: restrict grandpa gossip (#9131)

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* grandpa: make gossip more conservative (and fair)

* grandpa: make round commit timer dependent on gossip_duration

* grandpa: add gossip tests

* grandpa: reduce variance in tests
This commit is contained in:
André Silva
2021-06-18 20:31:00 +01:00
committed by GitHub
parent 50b9c35037
commit 90d47870a9
3 changed files with 276 additions and 273 deletions
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substrate/client/finality-grandpa/src/environment.rs
+3 -2
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@@ -1181,8 +1181,9 @@ where
fn round_commit_timer(&self) -> Self::Timer {
use rand::{thread_rng, Rng};
//random between 0-1 seconds.
let delay: u64 = thread_rng().gen_range(0, 1000);
// random between `[0, 2 * gossip_duration]` seconds.
let delay: u64 =
thread_rng().gen_range(0, 2 * self.config.gossip_duration.as_millis() as u64);
Box::pin(Delay::new(Duration::from_millis(delay)).map(Ok))
}