diff --git a/src/meta-srv/src/metrics.rs b/src/meta-srv/src/metrics.rs
index 493c2bcc7462..649230ccd2e3 100644
--- a/src/meta-srv/src/metrics.rs
+++ b/src/meta-srv/src/metrics.rs
@@ -16,37 +16,45 @@ use lazy_static::lazy_static;
 use prometheus::*;
 
 lazy_static! {
-    pub static ref METRIC_META_KV_REQUEST: HistogramVec = register_histogram_vec!(
-        "meta_kv_request",
+    /// Elapsed time to responding kv requests.
+    pub static ref METRIC_META_KV_REQUEST_ELAPSED: HistogramVec = register_histogram_vec!(
+        "meta_kv_request_elapsed",
         "meta kv request",
         &["target", "op", "cluster_id"]
     )
     .unwrap();
+    /// The heartbeat connection gauge.
     pub static ref METRIC_META_HEARTBEAT_CONNECTION_NUM: IntGauge = register_int_gauge!(
         "meta_heartbeat_connection_num",
         "meta heartbeat connection num"
     )
     .unwrap();
+    /// Elapsed time to execution of heartbeat handlers.
     pub static ref METRIC_META_HANDLER_EXECUTE: HistogramVec =
         register_histogram_vec!("meta_handler_execute", "meta handler execute", &["name"]).unwrap();
+    /// Inactive region gauge.
     pub static ref METRIC_META_INACTIVE_REGIONS: IntGauge =
         register_int_gauge!("meta_inactive_regions", "meta inactive regions").unwrap();
-    pub static ref METRIC_META_LEADER_CACHED_KV_LOAD: HistogramVec =
+    /// Elapsed time to leader cache kv.
+    pub static ref METRIC_META_LEADER_CACHED_KV_LOAD_ELAPSED: HistogramVec =
         register_histogram_vec!("meta_leader_cache_kv_load", "meta load cache", &["prefix"])
             .unwrap();
-    pub static ref METRIC_META_LOAD_FOLLOWER_METADATA: Histogram = register_histogram!(
-        "meta_load_follower_metadata",
+    /// Elapsed time to load follower region metadata.
+    pub static ref METRIC_META_LOAD_FOLLOWER_METADATA_ELAPSED: Histogram = register_histogram!(
+        "meta_load_follower_metadata_elapsed",
         "meta load follower regions metadata elapsed"
     )
     .unwrap();
-    pub static ref METRIC_META_LOAD_LEADER_METADATA: Histogram = register_histogram!(
-        "meta_load_leader_metadata",
+    /// Elapsed time to load leader region metadata.
+    pub static ref METRIC_META_LOAD_LEADER_METADATA_ELAPSED: Histogram = register_histogram!(
+        "meta_load_leader_metadata_elapsed",
         "meta load leader regions metadata elapsed"
     )
     .unwrap();
-    pub static ref METRIC_META_KV_CACHE_BATCH_GET_HIT_RATE: Gauge = register_gauge!(
-        "meta_kv_cache_batch_get_hit_rate",
-        "meta kv cache batch get hit rate"
-    )
-    .unwrap();
+    /// Meta kv cache hit counter.
+    pub static ref METRIC_META_KV_CACHE_HIT: IntCounterVec =
+        register_int_counter_vec!("meta_kv_cache_hit", "meta kv cache hit", &["op"]).unwrap();
+    /// Meta kv cache miss counter.
+    pub static ref METRIC_META_KV_CACHE_MISS: IntCounterVec =
+        register_int_counter_vec!("meta_kv_cache_miss", "meta kv cache miss", &["op"]).unwrap();
 }
diff --git a/src/meta-srv/src/region/lease_keeper.rs b/src/meta-srv/src/region/lease_keeper.rs
index f29495e1e5f8..449b6063cd3e 100644
--- a/src/meta-srv/src/region/lease_keeper.rs
+++ b/src/meta-srv/src/region/lease_keeper.rs
@@ -93,7 +93,7 @@ impl RegionLeaseKeeper {
         let table_ids = tables.keys().copied().collect::<Vec<_>>();
 
         let metadata_subset = {
-            let _timer = metrics::METRIC_META_LOAD_LEADER_METADATA.start_timer();
+            let _timer = metrics::METRIC_META_LOAD_LEADER_METADATA_ELAPSED.start_timer();
             self.collect_tables_metadata(&table_ids).await?
         };
 
@@ -140,7 +140,7 @@ impl RegionLeaseKeeper {
         let table_ids = tables.keys().copied().collect::<Vec<_>>();
 
         let metadata_subset = {
-            let _timer = metrics::METRIC_META_LOAD_FOLLOWER_METADATA.start_timer();
+            let _timer = metrics::METRIC_META_LOAD_FOLLOWER_METADATA_ELAPSED.start_timer();
             self.collect_tables_metadata(&table_ids).await?
         };
 
diff --git a/src/meta-srv/src/service/store.rs b/src/meta-srv/src/service/store.rs
index dfee0bc58e8d..1a291ada1f25 100644
--- a/src/meta-srv/src/service/store.rs
+++ b/src/meta-srv/src/service/store.rs
@@ -33,7 +33,7 @@ use tonic::{Request, Response};
 
 use crate::error::{self, MissingRequestHeaderSnafu};
 use crate::metasrv::MetaSrv;
-use crate::metrics::METRIC_META_KV_REQUEST;
+use crate::metrics::METRIC_META_KV_REQUEST_ELAPSED;
 use crate::service::GrpcResult;
 
 #[async_trait::async_trait]
@@ -48,7 +48,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[self.kv_backend().name(), "range", cluster_id_str.as_str()])
             .start_timer();
 
@@ -74,7 +74,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[self.kv_backend().name(), "put", cluster_id_str.as_str()])
             .start_timer();
 
@@ -100,7 +100,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[
                 self.kv_backend().name(),
                 "batch_get",
@@ -130,7 +130,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[
                 self.kv_backend().name(),
                 "batch_pub",
@@ -163,7 +163,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[
                 self.kv_backend().name(),
                 "batch_delete",
@@ -196,7 +196,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[
                 self.kv_backend().name(),
                 "compare_and_put",
@@ -229,7 +229,7 @@ impl store_server::Store for MetaSrv {
             .cluster_id;
         let cluster_id_str = cluster_id.to_string();
 
-        let _timer = METRIC_META_KV_REQUEST
+        let _timer = METRIC_META_KV_REQUEST_ELAPSED
             .with_label_values(&[
                 self.kv_backend().name(),
                 "delete_range",
diff --git a/src/meta-srv/src/service/store/cached_kv.rs b/src/meta-srv/src/service/store/cached_kv.rs
index a1d251971c29..af9e0a5cecac 100644
--- a/src/meta-srv/src/service/store/cached_kv.rs
+++ b/src/meta-srv/src/service/store/cached_kv.rs
@@ -94,7 +94,8 @@ impl LeaderCachedKvBackend {
     /// The caller MUST ensure during the loading, there are no mutation requests reaching the `LeaderCachedKvStore`.
     pub async fn load(&self) -> Result<()> {
         for prefix in &CACHE_KEY_PREFIXES[..] {
-            let _timer = metrics::METRIC_META_LEADER_CACHED_KV_LOAD.with_label_values(&[prefix]);
+            let _timer =
+                metrics::METRIC_META_LEADER_CACHED_KV_LOAD_ELAPSED.with_label_values(&[prefix]);
 
             // TODO(weny): Refactors PaginationStream's output to unary output.
             let stream = PaginationStream::new(
@@ -261,8 +262,9 @@ impl KvBackend for LeaderCachedKvBackend {
             .map(|kv| kv.key.clone())
             .collect::<HashSet<_>>();
 
-        let hit_rate = hit_keys.len() as f64 / req.keys.len() as f64;
-        metrics::METRIC_META_KV_CACHE_BATCH_GET_HIT_RATE.set(hit_rate);
+        metrics::METRIC_META_KV_CACHE_HIT
+            .with_label_values(&[&"batch_get"])
+            .inc_by(hit_keys.len() as u64);
 
         let missed_keys = req
             .keys
@@ -270,6 +272,10 @@ impl KvBackend for LeaderCachedKvBackend {
             .filter(|key| !hit_keys.contains(*key))
             .cloned()
             .collect::<Vec<_>>();
+        metrics::METRIC_META_KV_CACHE_MISS
+            .with_label_values(&[&"batch_get"])
+            .inc_by(missed_keys.len() as u64);
+
         let remote_req = BatchGetRequest { keys: missed_keys };
 
         let ver = self.get_version();