From d9e7b7f0e18547ed4f44b60141d3a1241f9dc342 Mon Sep 17 00:00:00 2001
From: Jussi Saurio <jussi.saurio@gmail.com>
Date: Tue, 16 Sep 2025 15:18:24 +0300
Subject: [PATCH] mvcc: starting a pager read tx can fail with busy

---
 core/mvcc/database/mod.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/mvcc/database/mod.rs b/core/mvcc/database/mod.rs
index 7b35c21f3..62a7a3b11 100644
--- a/core/mvcc/database/mod.rs
+++ b/core/mvcc/database/mod.rs
@@ -1399,7 +1399,10 @@ impl<Clock: LogicalClock> MvStore<Clock> {
 
         // TODO: we need to tie a pager's read transaction to a transaction ID, so that future refactors to read
         // pages from WAL/DB read from a consistent state to maintiain snapshot isolation.
-        pager.begin_read_tx()?;
+        let result = pager.begin_read_tx()?;
+        if let crate::result::LimboResult::Busy = result {
+            return Err(LimboError::Busy);
+        }
         Ok(tx_id)
     }