From e897ef3e254ec357e6b3ba7edff2a9c29bf162c3 Mon Sep 17 00:00:00 2001
From: mwtian <81660174+mwtian@users.noreply.github.com>
Date: Tue, 7 Jan 2025 08:52:44 -0800
Subject: [PATCH] [consensus] lower propagation delay threshold to 5 (#20800)

## Description

It seems well functioning validators do not have delay > 3.

## Test plan

CI

---

## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

For each box you select, include information after the relevant heading
that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [ ] Protocol:
- [ ] Nodes (Validators and Full nodes):
- [ ] gRPC:
- [ ] JSON-RPC:
- [ ] GraphQL:
- [ ] CLI:
- [ ] Rust SDK:
---
 consensus/config/src/parameters.rs                             | 2 +-
 .../config/tests/snapshots/parameters_test__parameters.snap    | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/consensus/config/src/parameters.rs b/consensus/config/src/parameters.rs
index f83902fcef110..188ccea5d7043 100644
--- a/consensus/config/src/parameters.rs
+++ b/consensus/config/src/parameters.rs
@@ -155,7 +155,7 @@ impl Parameters {
         if cfg!(msim) {
             2
         } else {
-            10
+            5
         }
     }
 
diff --git a/consensus/config/tests/snapshots/parameters_test__parameters.snap b/consensus/config/tests/snapshots/parameters_test__parameters.snap
index a2c47a167c49b..5069707fc4934 100644
--- a/consensus/config/tests/snapshots/parameters_test__parameters.snap
+++ b/consensus/config/tests/snapshots/parameters_test__parameters.snap
@@ -17,7 +17,7 @@ sync_last_known_own_block_timeout:
   nanos: 0
 round_prober_interval_ms: 5000
 round_prober_request_timeout_ms: 2000
-propagation_delay_stop_proposal_threshold: 10
+propagation_delay_stop_proposal_threshold: 5
 dag_state_cached_rounds: 500
 commit_sync_parallel_fetches: 8
 commit_sync_batch_size: 100
@@ -31,4 +31,3 @@ tonic:
   connection_buffer_size: 33554432
   excessive_message_size: 16777216
   message_size_limit: 67108864
-