diff --git a/src/Coordination/KeeperServer.cpp b/src/Coordination/KeeperServer.cpp
index acce76a62e7..171fa2986eb 100644
--- a/src/Coordination/KeeperServer.cpp
+++ b/src/Coordination/KeeperServer.cpp
@@ -317,7 +317,7 @@ uint64_t KeeperServer::getSyncedFollowerCount() const
     uint64_t stale_followers = 0;
 
     const uint64_t stale_follower_gap = raft_instance->get_current_params().stale_log_gap_;
-    for (auto & fl : followers)
+    for (const auto & fl : followers)
     {
         if (last_log_idx > fl.last_log_idx_ + stale_follower_gap)
             stale_followers++;
diff --git a/src/Coordination/KeeperStorage.h b/src/Coordination/KeeperStorage.h
index 0cf173e9b80..44dc1b2b43b 100644
--- a/src/Coordination/KeeperStorage.h
+++ b/src/Coordination/KeeperStorage.h
@@ -186,7 +186,7 @@ public:
 
     uint64_t getApproximateDataSize() const
     {
-        return container.getApproximateSataSize();
+        return container.getApproximateDataSize();
     }
 
     uint64_t getTotalWatchesCount() const;
diff --git a/src/Coordination/SnapshotableHashTable.h b/src/Coordination/SnapshotableHashTable.h
index 98f4c6c8e14..7704825f830 100644
--- a/src/Coordination/SnapshotableHashTable.h
+++ b/src/Coordination/SnapshotableHashTable.h
@@ -274,7 +274,7 @@ public:
         return list.size();
     }
 
-    uint64_t getApproximateSataSize() const
+    uint64_t getApproximateDataSize() const
     {
         return approximate_data_size;
     }
diff --git a/src/Coordination/tests/gtest_coordination.cpp b/src/Coordination/tests/gtest_coordination.cpp
index 710670f5b16..5b15044ab0d 100644
--- a/src/Coordination/tests/gtest_coordination.cpp
+++ b/src/Coordination/tests/gtest_coordination.cpp
@@ -940,33 +940,33 @@ TEST_P(CoordinationTest, SnapshotableHashMapDataSize)
     /// int
     DB::SnapshotableHashTable<IntNode> hello;
     hello.disableSnapshotMode();
-    EXPECT_EQ(hello.getApproximateSataSize(), 0);
+    EXPECT_EQ(hello.getApproximateDataSize(), 0);
 
     hello.insert("hello", 1);
-    EXPECT_EQ(hello.getApproximateSataSize(), 9);
+    EXPECT_EQ(hello.getApproximateDataSize(), 9);
     hello.updateValue("hello", [](IntNode & value) { value = 2; });
-    EXPECT_EQ(hello.getApproximateSataSize(), 9);
+    EXPECT_EQ(hello.getApproximateDataSize(), 9);
 
     hello.erase("hello");
-    EXPECT_EQ(hello.getApproximateSataSize(), 0);
+    EXPECT_EQ(hello.getApproximateDataSize(), 0);
 
     hello.clear();
-    EXPECT_EQ(hello.getApproximateSataSize(), 0);
+    EXPECT_EQ(hello.getApproximateDataSize(), 0);
 
     hello.enableSnapshotMode();
     hello.insert("hello", 1);
-    EXPECT_EQ(hello.getApproximateSataSize(), 9);
+    EXPECT_EQ(hello.getApproximateDataSize(), 9);
     hello.updateValue("hello", [](IntNode & value) { value = 2; });
-    EXPECT_EQ(hello.getApproximateSataSize(), 18);
+    EXPECT_EQ(hello.getApproximateDataSize(), 18);
 
     hello.clearOutdatedNodes();
-    EXPECT_EQ(hello.getApproximateSataSize(), 9);
+    EXPECT_EQ(hello.getApproximateDataSize(), 9);
 
     hello.erase("hello");
-    EXPECT_EQ(hello.getApproximateSataSize(), 9);
+    EXPECT_EQ(hello.getApproximateDataSize(), 9);
 
     hello.clearOutdatedNodes();
-    EXPECT_EQ(hello.getApproximateSataSize(), 0);
+    EXPECT_EQ(hello.getApproximateDataSize(), 0);
 
     /// Node
     using Node = DB::KeeperStorage::Node;
@@ -983,27 +983,27 @@ TEST_P(CoordinationTest, SnapshotableHashMapDataSize)
     /// 160 = sizeof Node
     /// 5 = sizeof key
     /// 4 = sizeof value
-    EXPECT_EQ(world.getApproximateSataSize(), 169);
+    EXPECT_EQ(world.getApproximateDataSize(), 169);
     world.updateValue("world", [&](Node & value) { value = n2; });
-    EXPECT_EQ(world.getApproximateSataSize(), 171);
+    EXPECT_EQ(world.getApproximateDataSize(), 171);
 
     world.erase("world");
-    EXPECT_EQ(world.getApproximateSataSize(), 0);
+    EXPECT_EQ(world.getApproximateDataSize(), 0);
 
     world.enableSnapshotMode();
     world.insert("world", n1);
-    EXPECT_EQ(world.getApproximateSataSize(), 169);
+    EXPECT_EQ(world.getApproximateDataSize(), 169);
     world.updateValue("world", [&](Node & value) { value = n2; });
-    EXPECT_EQ(world.getApproximateSataSize(), 340);
+    EXPECT_EQ(world.getApproximateDataSize(), 340);
 
     world.clearOutdatedNodes();
-    EXPECT_EQ(world.getApproximateSataSize(), 171);
+    EXPECT_EQ(world.getApproximateDataSize(), 171);
 
     world.erase("world");
-    EXPECT_EQ(world.getApproximateSataSize(), 171);
+    EXPECT_EQ(world.getApproximateDataSize(), 171);
 
     world.clear();
-    EXPECT_EQ(world.getApproximateSataSize(), 0);
+    EXPECT_EQ(world.getApproximateDataSize(), 0);
 }
 
 void addNode(DB::KeeperStorage & storage, const std::string & path, const std::string & data, int64_t ephemeral_owner=0)