From c12d1eef3455d5e806c305ed0e80af2971c84920 Mon Sep 17 00:00:00 2001
From: Tao Zhu <82401714+taozhu-chicago@users.noreply.github.com>
Date: Fri, 2 Jul 2021 14:04:09 -0500
Subject: [PATCH] log warning when channel send fails (#18391)

---
 core/src/replay_stage.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/replay_stage.rs b/core/src/replay_stage.rs
index c4ebcac5432bfc..92930f7085e7ba 100644
--- a/core/src/replay_stage.rs
+++ b/core/src/replay_stage.rs
@@ -1807,7 +1807,7 @@ impl ReplayStage {
         // send accumulated excute-timings to cost_update_service
         cost_update_sender
             .send(execute_timings)
-            .expect("send execution cost update to cost_model");
+            .unwrap_or_else(|err| warn!("cost_update_sender failed: {:?}", err));
 
         inc_new_counter_info!("replay_stage-replay_transactions", tx_count);
         did_complete_bank