diff --git a/Cargo.lock b/Cargo.lock
index 98c71ab057..f92b955d32 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2155,6 +2155,7 @@ version = "2.2.0-alpha"
 dependencies = [
  "anyhow",
  "common",
+ "seahash",
  "storage",
  "temp-dir",
  "test-log",
@@ -2617,7 +2618,7 @@ checksum = "0c1318b19085f08681016926435853bbf7858f9c082d0999b80550ff5d9abe15"
 dependencies = [
  "bytes",
  "heck",
- "itertools 0.10.5",
+ "itertools 0.13.0",
  "log",
  "multimap",
  "once_cell",
@@ -2637,7 +2638,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e9552f850d5f0964a4e4d0bf306459ac29323ddfbae05e35a7c0d35cb0803cc5"
 dependencies = [
  "anyhow",
- "itertools 0.10.5",
+ "itertools 0.13.0",
  "proc-macro2",
  "quote",
  "syn",
@@ -2825,6 +2826,12 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "seahash"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
+
 [[package]]
 name = "semver"
 version = "1.0.23"
diff --git a/Cargo.toml b/Cargo.toml
index d5d24cf802..84ae73c6e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,6 +37,7 @@ members = [
 
 [workspace.dependencies]
 anyhow = { version = "1.0" }
+seahash = { version = "4" }
 metric_engine = { path = "src/metric_engine" }
 horaedb_storage = { package = "storage", path = "src/storage" }
 common = { path = "src/common" }
diff --git a/src/metric_engine/Cargo.toml b/src/metric_engine/Cargo.toml
index ae3acf25da..ceaf134241 100644
--- a/src/metric_engine/Cargo.toml
+++ b/src/metric_engine/Cargo.toml
@@ -29,6 +29,7 @@ description.workspace = true
 anyhow = { workspace = true }
 common = { workspace = true }
 horaedb_storage = { workspace = true }
+seahash = { workspace = true }
 thiserror = { workspace = true }
 tokio = { workspace = true }
 tracing = { workspace = true }
diff --git a/src/metric_engine/src/metric/mod.rs b/src/metric_engine/src/metric/mod.rs
index d51640973e..bdd1d6623c 100644
--- a/src/metric_engine/src/metric/mod.rs
+++ b/src/metric_engine/src/metric/mod.rs
@@ -42,3 +42,9 @@ impl MetricManager {
 struct Inner {
     storage: TimeMergeStorageRef,
 }
+
+impl Inner {
+    async fn populate_metric_ids(&self, _samples: &mut [Sample]) -> Result<()> {
+        todo!()
+    }
+}
diff --git a/src/metric_engine/src/types.rs b/src/metric_engine/src/types.rs
index d371de23a1..6203bc174d 100644
--- a/src/metric_engine/src/types.rs
+++ b/src/metric_engine/src/types.rs
@@ -35,3 +35,7 @@ pub struct Sample {
     /// hash of labels(sorted)
     pub series_id: Option<SeriesId>,
 }
+
+pub fn hash(buf: &[u8]) -> u64 {
+    seahash::hash(buf)
+}