From d3d0ccff121f41324eff22ed150342df619ed981 Mon Sep 17 00:00:00 2001
From: Nikolay Volf <nikvolf@gmail.com>
Date: Wed, 6 May 2020 18:33:48 +0300
Subject: [PATCH] add state trace (#5924)

---
 substrate/primitives/state-machine/src/ext.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/substrate/primitives/state-machine/src/ext.rs b/substrate/primitives/state-machine/src/ext.rs
index 746e016a64..1cd4f01e7b 100644
--- a/substrate/primitives/state-machine/src/ext.rs
+++ b/substrate/primitives/state-machine/src/ext.rs
@@ -420,6 +420,12 @@ where
 		key: Vec<u8>,
 		value: Vec<u8>,
 	) {
+		trace!(target: "state", "{:04x}: Append({}) {}",
+			self.id,
+			HexDisplay::from(&key),
+			HexDisplay::from(&value),
+		);
+
 		let _guard = sp_panic_handler::AbortGuard::force_abort();
 		self.mark_dirty();