diff --git a/src/metric-engine/src/engine/create.rs b/src/metric-engine/src/engine/create.rs
index dd3b5cb1f358..d897640cc529 100644
--- a/src/metric-engine/src/engine/create.rs
+++ b/src/metric-engine/src/engine/create.rs
@@ -456,11 +456,7 @@ impl MetricEngineInner {
         // concat region dir
         let metadata_region_dir = join_dir(&request.region_dir, METADATA_REGION_SUBDIR);
 
-        // remove TTL and APPEND_MODE option
-        let mut options = request.options.clone();
-        options.insert(TTL_KEY.to_string(), "10000 years".to_string());
-        options.remove(APPEND_MODE_KEY);
-
+        let options = region_options_for_metadata_region(request.options.clone());
         RegionCreateRequest {
             engine: MITO_ENGINE_NAME.to_string(),
             column_metadatas: vec![
@@ -539,6 +535,15 @@ impl MetricEngineInner {
     }
 }
 
+/// Creates the region options for metadata region in metric engine.
+pub(crate) fn region_options_for_metadata_region(
+    mut original: HashMap<String, String>,
+) -> HashMap<String, String> {
+    original.remove(APPEND_MODE_KEY);
+    original.insert(TTL_KEY.to_string(), "10000 years".to_string());
+    original
+}
+
 #[cfg(test)]
 mod test {
     use store_api::metric_engine_consts::{METRIC_ENGINE_NAME, PHYSICAL_TABLE_METADATA_KEY};
diff --git a/src/metric-engine/src/engine/open.rs b/src/metric-engine/src/engine/open.rs
index bf41099b39b3..aae090f3194d 100644
--- a/src/metric-engine/src/engine/open.rs
+++ b/src/metric-engine/src/engine/open.rs
@@ -24,6 +24,7 @@ use store_api::region_request::{AffectedRows, RegionOpenRequest, RegionRequest};
 use store_api::storage::RegionId;
 
 use super::MetricEngineInner;
+use crate::engine::create::region_options_for_metadata_region;
 use crate::engine::options::set_data_region_options;
 use crate::error::{OpenMitoRegionSnafu, Result};
 use crate::metrics::{LOGICAL_REGION_COUNT, PHYSICAL_REGION_COUNT};
@@ -68,9 +69,10 @@ impl MetricEngineInner {
         let metadata_region_dir = join_dir(&request.region_dir, METADATA_REGION_SUBDIR);
         let data_region_dir = join_dir(&request.region_dir, DATA_REGION_SUBDIR);
 
+        let metadata_region_options = region_options_for_metadata_region(request.options.clone());
         let open_metadata_region_request = RegionOpenRequest {
             region_dir: metadata_region_dir,
-            options: request.options.clone(),
+            options: metadata_region_options,
             engine: MITO_ENGINE_NAME.to_string(),
             skip_wal_replay: request.skip_wal_replay,
         };
diff --git a/typos.toml b/typos.toml
index c8b2fe33540b..2ce6ac8a4169 100644
--- a/typos.toml
+++ b/typos.toml
@@ -11,5 +11,6 @@ extend-exclude = [
     "tests-fuzz/src/data/lorem_words",
     "*.sql",
     "*.result",
-    "src/pipeline/benches/data.log"
+    "src/pipeline/benches/data.log",
+    "cyborg/pnpm-lock.yaml"
 ]