From 05e6ca1e142483342541cb0b7c8006b1083aeaf8 Mon Sep 17 00:00:00 2001
From: JeremyHi <jiachun_feng@proton.me>
Date: Tue, 9 May 2023 10:11:26 +0800
Subject: [PATCH] fix: the latest number of regions (#1546)

* fix: the latest number of regions

* fix: unit test
---
 src/meta-srv/src/keys.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/meta-srv/src/keys.rs b/src/meta-srv/src/keys.rs
index d6590f9833..ee4bf80cd8 100644
--- a/src/meta-srv/src/keys.rs
+++ b/src/meta-srv/src/keys.rs
@@ -251,9 +251,9 @@ pub struct StatValue {
 }
 
 impl StatValue {
-    /// Get the region number from stat value.
+    /// Get the latest number of regions.
     pub fn region_num(&self) -> Option<u64> {
-        for stat in self.stats.iter() {
+        for stat in self.stats.iter().rev() {
             match stat.region_num {
                 Some(region_num) => return Some(region_num),
                 None => continue,
@@ -402,7 +402,7 @@ mod tests {
             ],
         };
         let region_num = stat_val.region_num().unwrap();
-        assert_eq!(1, region_num);
+        assert_eq!(2, region_num);
     }
 
     #[test]