From 4a6d1d1e3bc3d559cd13d134b4b827f22635ac4b Mon Sep 17 00:00:00 2001
From: Andrew Toth <andrewstoth@gmail.com>
Date: Thu, 17 Aug 2023 16:17:18 -0400
Subject: [PATCH] validation: don't clear cache on periodic flush

---
 src/validation.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/validation.cpp b/src/validation.cpp
index 5c585438d14..94c470ce2cc 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2745,8 +2745,10 @@ bool Chainstate::FlushStateToDisk(
                 return FatalError(m_chainman.GetNotifications(), state, _("Disk space is too low!"));
             }
             // Flush the chainstate (which may refer to block index entries).
-            if (!CoinsTip().Flush())
+            const auto empty_cache{(mode == FlushStateMode::ALWAYS) || fCacheLarge || fCacheCritical || fFlushForPrune};
+            if (empty_cache ? !CoinsTip().Flush() : !CoinsTip().Sync()) {
                 return FatalError(m_chainman.GetNotifications(), state, _("Failed to write to coin database."));
+            }
             m_last_flush = nNow;
             full_flush_completed = true;
             TRACE5(utxocache, flush,