From 7de12736ece9240707a66dc4d50ea1224005203d Mon Sep 17 00:00:00 2001
From: Nathan VanBenschoten <nvanbenschoten@gmail.com>
Date: Thu, 12 Jan 2023 13:09:21 -0500
Subject: [PATCH] kv: introduce trace event on concurrency retry error

Improves observability.

Release note: None
Epic: None
---
 pkg/kv/kvserver/replica_send.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/kv/kvserver/replica_send.go b/pkg/kv/kvserver/replica_send.go
index e0017ea86cbf..6879b6ce15f5 100644
--- a/pkg/kv/kvserver/replica_send.go
+++ b/pkg/kv/kvserver/replica_send.go
@@ -497,6 +497,8 @@ func (r *Replica) executeBatchWithConcurrencyRetries(
 			return nil, nil, pErr
 		}
 
+		log.VErrEventf(ctx, 2, "concurrency retry error: %s", pErr)
+
 		// The batch execution func returned a server-side concurrency retry error.
 		// It may have either handed back ownership of the concurrency guard without
 		// having already released the guard's latches, or in case of certain types