From 8076c81dd6e8213b107718764ec9e094b7653f04 Mon Sep 17 00:00:00 2001
From: kan <kan@emerald.cash>
Date: Tue, 30 Apr 2024 13:33:20 +0400
Subject: [PATCH] solution: add upstream height metric

---
 .../kotlin/io/emeraldpay/dshackle/upstream/Multistream.kt   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/kotlin/io/emeraldpay/dshackle/upstream/Multistream.kt b/src/main/kotlin/io/emeraldpay/dshackle/upstream/Multistream.kt
index a324ae18e..31d916708 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/Multistream.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/Multistream.kt
@@ -90,6 +90,12 @@ abstract class Multistream(
         ) {
             it.getLag().toDouble()
         }
+        Metrics.gauge(
+            "$metrics.height",
+            listOf(Tag.of("chain", chain.chainCode), Tag.of("upstream", upstream.getId())), upstream
+        ) {
+            it.getHead().getCurrentHeight()?.toDouble() ?: 0.0
+        }
     }
 
     open fun init() {