From bb462683b99744544986a6e17b90d8be59f8280a Mon Sep 17 00:00:00 2001
From: Robert Habermeier <rphmeier@gmail.com>
Date: Sun, 14 Mar 2021 15:28:06 -0500
Subject: [PATCH] add tracing when no assignment in candidate selection (#2623)

---
 polkadot/node/core/candidate-selection/src/lib.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/polkadot/node/core/candidate-selection/src/lib.rs b/polkadot/node/core/candidate-selection/src/lib.rs
index a7cd459632..077fb340d7 100644
--- a/polkadot/node/core/candidate-selection/src/lib.rs
+++ b/polkadot/node/core/candidate-selection/src/lib.rs
@@ -164,6 +164,18 @@ impl JobTrait for CandidateSelectionJob {
 				}
 				None => {
 					assignment_span.add_string_tag("assigned", "false");
+
+					let validator_index = validator.index();
+					let validator_id = validator.id();
+
+					tracing::debug!(
+						target: LOG_TARGET,
+						?relay_parent,
+						?validator_index,
+						?validator_id,
+						"No assignment. Will not select candidate."
+					);
+
 					return Ok(())
 				}
 			};