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Increase push fanout from 6 to 9 #32323

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Jun 29, 2023
Merged

Increase push fanout from 6 to 9 #32323

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857d4e2
increase push fanout from 6 to 9. leave active set size at 12
Jun 28, 2023
36562b0
Merge branch 'master' into increase-push-fanout
Jun 28, 2023
2d7b7de
forgot to change comment to reflect push fanout increase
Jun 28, 2023
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6 changes: 3 additions & 3 deletions gossip/src/crds_gossip_push.rs
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Expand Up @@ -42,15 +42,15 @@ use {
},
};

const CRDS_GOSSIP_PUSH_FANOUT: usize = 6;
// With a fanout of 6, a 1000 node cluster should only take ~4 hops to converge.
const CRDS_GOSSIP_PUSH_FANOUT: usize = 9;
// With a fanout of 6, a 2000 node cluster should only take ~3.5 hops to converge.
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// However since pushes are stake weighed, some trailing nodes
// might need more time to receive values. 30 seconds should be plenty.
pub const CRDS_GOSSIP_PUSH_MSG_TIMEOUT_MS: u64 = 30000;
const CRDS_GOSSIP_PRUNE_MSG_TIMEOUT_MS: u64 = 500;
const CRDS_GOSSIP_PRUNE_STAKE_THRESHOLD_PCT: f64 = 0.15;
const CRDS_GOSSIP_PRUNE_MIN_INGRESS_NODES: usize = 2;
const CRDS_GOSSIP_PUSH_ACTIVE_SET_SIZE: usize = CRDS_GOSSIP_PUSH_FANOUT * 2;
const CRDS_GOSSIP_PUSH_ACTIVE_SET_SIZE: usize = CRDS_GOSSIP_PUSH_FANOUT + 3;

pub struct CrdsGossipPush {
/// Max bytes per message
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