From 7423d94935f16d9f7619b7d170db60b9f97bc050 Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Fri, 14 Jan 2022 08:26:59 +0200
Subject: [PATCH] only retain one day of mempool rate sizes

---
 src/main/java/com/sparrowwallet/sparrow/AppServices.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/com/sparrowwallet/sparrow/AppServices.java b/src/main/java/com/sparrowwallet/sparrow/AppServices.java
index 76e9b2a6..9c5af9fd 100644
--- a/src/main/java/com/sparrowwallet/sparrow/AppServices.java
+++ b/src/main/java/com/sparrowwallet/sparrow/AppServices.java
@@ -615,6 +615,9 @@ public class AppServices {
         }
 
         mempoolHistogram.put(Date.from(dateMinute.atZone(ZoneId.systemDefault()).toInstant()), rateSizes);
+
+        Date yesterday = Date.from(LocalDateTime.now().minusDays(1).atZone(ZoneId.systemDefault()).toInstant());
+        mempoolHistogram.keySet().removeIf(date -> date.before(yesterday));
     }
 
     public static Double getMinimumRelayFeeRate() {