diff --git a/Cargo.lock b/Cargo.lock
index b87a5d162f..c52b7cfec3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -12336,6 +12336,7 @@ dependencies = [
  "common-base",
  "common-error",
  "common-macro",
+ "common-meta",
  "common-query",
  "common-runtime",
  "common-telemetry",
diff --git a/tests-fuzz/Cargo.toml b/tests-fuzz/Cargo.toml
index c408992bd5..3b7b41e7a5 100644
--- a/tests-fuzz/Cargo.toml
+++ b/tests-fuzz/Cargo.toml
@@ -21,6 +21,7 @@ chrono = { workspace = true }
 common-base = { workspace = true }
 common-error = { workspace = true }
 common-macro = { workspace = true }
+common-meta = { workspace = true }
 common-query = { workspace = true }
 common-runtime = { workspace = true }
 common-telemetry = { workspace = true }
diff --git a/tests-fuzz/targets/failover/fuzz_failover_metric_regions.rs b/tests-fuzz/targets/failover/fuzz_failover_metric_regions.rs
index 147c3ead1e..821a9cfe9e 100644
--- a/tests-fuzz/targets/failover/fuzz_failover_metric_regions.rs
+++ b/tests-fuzz/targets/failover/fuzz_failover_metric_regions.rs
@@ -19,6 +19,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use arbitrary::{Arbitrary, Unstructured};
+use common_meta::distributed_time_constants;
 use common_telemetry::info;
 use libfuzzer_sys::fuzz_target;
 use rand::{Rng, SeedableRng};
@@ -251,6 +252,10 @@ async fn execute_failover(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
     recover_pod_failure(ctx.kube.clone(), &ctx.namespace, &chaos_name).await?;
     wait_for_all_datanode_online(ctx.greptime.clone(), Duration::from_secs(60)).await;
 
+    tokio::time::sleep(Duration::from_secs(
+        distributed_time_constants::REGION_LEASE_SECS,
+    ))
+    .await;
     // Validates value rows
     info!("Validates num of rows");
 
diff --git a/tests-fuzz/targets/failover/fuzz_failover_mito_regions.rs b/tests-fuzz/targets/failover/fuzz_failover_mito_regions.rs
index f456550b3f..158ffed2c1 100644
--- a/tests-fuzz/targets/failover/fuzz_failover_mito_regions.rs
+++ b/tests-fuzz/targets/failover/fuzz_failover_mito_regions.rs
@@ -19,6 +19,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use arbitrary::{Arbitrary, Unstructured};
+use common_meta::distributed_time_constants;
 use common_telemetry::info;
 use common_time::util::current_time_millis;
 use futures::future::try_join_all;
@@ -318,6 +319,10 @@ async fn execute_failover(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
     recover_pod_failure(ctx.kube.clone(), &ctx.namespace, &chaos_name).await?;
     wait_for_all_datanode_online(ctx.greptime.clone(), Duration::from_secs(60)).await;
 
+    tokio::time::sleep(Duration::from_secs(
+        distributed_time_constants::REGION_LEASE_SECS,
+    ))
+    .await;
     // Validates value rows
     info!("Validates num of rows");
     for (table_ctx, expected_rows) in table_ctxs.iter().zip(affected_rows) {
diff --git a/tests-fuzz/targets/migration/fuzz_migrate_metric_regions.rs b/tests-fuzz/targets/migration/fuzz_migrate_metric_regions.rs
index 5bcddea53a..e79b893b12 100644
--- a/tests-fuzz/targets/migration/fuzz_migrate_metric_regions.rs
+++ b/tests-fuzz/targets/migration/fuzz_migrate_metric_regions.rs
@@ -19,6 +19,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use arbitrary::{Arbitrary, Unstructured};
+use common_meta::distributed_time_constants;
 use common_telemetry::info;
 use libfuzzer_sys::fuzz_target;
 use rand::{Rng, SeedableRng};
@@ -252,6 +253,50 @@ async fn wait_for_migration(ctx: &FuzzContext, migration: &Migration, procedure_
     .await;
 }
 
+async fn migrate_regions(ctx: &FuzzContext, migrations: &[Migration]) -> Result<()> {
+    let mut procedure_ids = Vec::with_capacity(migrations.len());
+    // Triggers region migrations
+    for Migration {
+        from_peer,
+        to_peer,
+        region_id,
+    } in migrations
+    {
+        let procedure_id =
+            migrate_region(&ctx.greptime, region_id.as_u64(), *from_peer, *to_peer, 120).await;
+        info!("Migrating region: {region_id} from {from_peer} to {to_peer}, procedure: {procedure_id}");
+        procedure_ids.push(procedure_id);
+    }
+    for (migration, procedure_id) in migrations.iter().zip(procedure_ids) {
+        wait_for_migration(ctx, migration, &procedure_id).await;
+    }
+
+    tokio::time::sleep(Duration::from_secs(
+        distributed_time_constants::REGION_LEASE_SECS,
+    ))
+    .await;
+
+    Ok(())
+}
+
+async fn validate_rows(
+    ctx: &FuzzContext,
+    tables: &HashMap<Ident, (TableContextRef, InsertIntoExpr)>,
+) -> Result<()> {
+    info!("Validates num of rows");
+    for (table_ctx, insert_expr) in tables.values() {
+        let sql = format!("select count(1) as count from {}", table_ctx.name);
+        let values = count_values(&ctx.greptime, &sql).await?;
+        let expected_rows = insert_expr.values_list.len() as u64;
+        assert_eq!(
+            values.count as u64, expected_rows,
+            "Expected rows: {}, got: {}, table: {}",
+            expected_rows, values.count, table_ctx.name
+        );
+    }
+    Ok(())
+}
+
 async fn execute_migration(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
     let mut rng = ChaCha20Rng::seed_from_u64(input.seed);
     // Creates a physical table.
@@ -305,36 +350,11 @@ async fn execute_migration(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
         }
     }
 
-    let mut procedure_ids = Vec::with_capacity(migrations.len());
-    // Triggers region migrations
-    for Migration {
-        from_peer,
-        to_peer,
-        region_id,
-    } in &migrations
-    {
-        let procedure_id =
-            migrate_region(&ctx.greptime, region_id.as_u64(), *from_peer, *to_peer, 120).await;
-        info!("Migrating region: {region_id} from {from_peer} to {to_peer}, procedure: {procedure_id}");
-        procedure_ids.push(procedure_id);
-    }
     info!("Excepted new region distribution: {new_distribution:?}");
-    for (migration, procedure_id) in migrations.clone().into_iter().zip(procedure_ids) {
-        wait_for_migration(&ctx, &migration, &procedure_id).await;
-    }
+    migrate_regions(&ctx, &migrations).await?;
 
     // Validates value rows
-    info!("Validates num of rows");
-    for (table_ctx, insert_expr) in tables.values() {
-        let sql = format!("select count(1) as count from {}", table_ctx.name);
-        let values = count_values(&ctx.greptime, &sql).await?;
-        let expected_rows = insert_expr.values_list.len() as u64;
-        assert_eq!(
-            values.count as u64, expected_rows,
-            "Expected rows: {}, got: {}, table: {}",
-            expected_rows, values.count, table_ctx.name
-        );
-    }
+    validate_rows(&ctx, &tables).await?;
 
     // Creates more logical tables and inserts values
     create_logical_table_and_insert_values(
@@ -348,17 +368,7 @@ async fn execute_migration(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
     .await?;
 
     // Validates value rows
-    info!("Validates num of rows");
-    for (table_ctx, insert_expr) in tables.values() {
-        let sql = format!("select count(1) as count from {}", table_ctx.name);
-        let values = count_values(&ctx.greptime, &sql).await?;
-        let expected_rows = insert_expr.values_list.len() as u64;
-        assert_eq!(
-            values.count as u64, expected_rows,
-            "Expected rows: {}, got: {}, table: {}",
-            expected_rows, values.count, table_ctx.name
-        );
-    }
+    validate_rows(&ctx, &tables).await?;
 
     // Recovers region distribution
     let migrations = migrations
@@ -376,23 +386,7 @@ async fn execute_migration(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
         )
         .collect::<Vec<_>>();
 
-    let mut procedure_ids = Vec::with_capacity(migrations.len());
-    // Triggers region migrations
-    for Migration {
-        from_peer,
-        to_peer,
-        region_id,
-    } in &migrations
-    {
-        let procedure_id =
-            migrate_region(&ctx.greptime, region_id.as_u64(), *from_peer, *to_peer, 120).await;
-        info!("Migrating region: {region_id} from {from_peer} to {to_peer}, procedure: {procedure_id}");
-        procedure_ids.push(procedure_id);
-    }
-    info!("Excepted new region distribution: {new_distribution:?}");
-    for (migration, procedure_id) in migrations.clone().into_iter().zip(procedure_ids) {
-        wait_for_migration(&ctx, &migration, &procedure_id).await;
-    }
+    migrate_regions(&ctx, &migrations).await?;
 
     // Creates more logical tables and inserts values
     create_logical_table_and_insert_values(
@@ -406,17 +400,7 @@ async fn execute_migration(ctx: FuzzContext, input: FuzzInput) -> Result<()> {
     .await?;
 
     // Validates value rows
-    info!("Validates num of rows");
-    for (table_ctx, insert_expr) in tables.values() {
-        let sql = format!("select count(1) as count from {}", table_ctx.name);
-        let values = count_values(&ctx.greptime, &sql).await?;
-        let expected_rows = insert_expr.values_list.len() as u64;
-        assert_eq!(
-            values.count as u64, expected_rows,
-            "Expected rows: {}, got: {}, table: {}",
-            expected_rows, values.count, table_ctx.name
-        );
-    }
+    validate_rows(&ctx, &tables).await?;
 
     // Clean up
     for (table_ctx, _) in tables.values() {
diff --git a/tests-fuzz/targets/migration/fuzz_migrate_mito_regions.rs b/tests-fuzz/targets/migration/fuzz_migrate_mito_regions.rs
index 12c4cdae49..b1a9c735ed 100644
--- a/tests-fuzz/targets/migration/fuzz_migrate_mito_regions.rs
+++ b/tests-fuzz/targets/migration/fuzz_migrate_mito_regions.rs
@@ -19,6 +19,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use arbitrary::{Arbitrary, Unstructured};
+use common_meta::distributed_time_constants;
 use common_telemetry::info;
 use libfuzzer_sys::fuzz_target;
 use rand::{Rng, SeedableRng};
@@ -261,6 +262,11 @@ async fn migrate_regions(ctx: &FuzzContext, migrations: &[Migration]) -> Result<
         .await;
     }
 
+    tokio::time::sleep(Duration::from_secs(
+        distributed_time_constants::REGION_LEASE_SECS,
+    ))
+    .await;
+
     Ok(())
 }