diff --git a/src/meta/src/rpc/election/etcd.rs b/src/meta/src/rpc/election/etcd.rs
index 84c88c66a9c6f..f30d8253cb95d 100644
--- a/src/meta/src/rpc/election/etcd.rs
+++ b/src/meta/src/rpc/election/etcd.rs
@@ -23,9 +23,9 @@ use tokio::sync::{oneshot, watch};
 use tokio::time;
 use tokio_stream::StreamExt;
 
-use crate::rpc::election::META_ELECTION_KEY;
+use crate::rpc::election::{ElectionClient, ElectionMember, META_ELECTION_KEY};
 use crate::storage::WrappedEtcdClient;
-use crate::{ElectionClient, ElectionMember, MetaResult};
+use crate::MetaResult;
 
 pub struct EtcdElectionClient {
     id: String,
diff --git a/src/meta/src/stream/source_manager.rs b/src/meta/src/stream/source_manager.rs
index e208222de4908..fa3159f6657ec 100644
--- a/src/meta/src/stream/source_manager.rs
+++ b/src/meta/src/stream/source_manager.rs
@@ -23,7 +23,6 @@ use std::time::Duration;
 use anyhow::anyhow;
 use itertools::Itertools;
 use risingwave_common::catalog::TableId;
-use risingwave_common::util::runtime::BackgroundShutdownRuntime;
 use risingwave_connector::dispatch_source_prop;
 use risingwave_connector::source::{
     ConnectorProperties, SourceEnumeratorContext, SourceEnumeratorInfo, SourceProperties,
@@ -53,7 +52,6 @@ pub struct SourceManager {
     barrier_scheduler: BarrierScheduler,
     core: Mutex<SourceManagerCore>,
     metrics: Arc<MetaMetrics>,
-    runtime: Arc<BackgroundShutdownRuntime>,
 }
 
 const MAX_FAIL_CNT: u32 = 10;
@@ -501,20 +499,11 @@ impl SourceManager {
         fragment_manager: FragmentManagerRef,
         metrics: Arc<MetaMetrics>,
     ) -> MetaResult<Self> {
-        let runtime = tokio::runtime::Builder::new_multi_thread()
-            .thread_name("risingwave-source-manager")
-            .enable_all()
-            .build()
-            .map_err(|e| anyhow!(e))?;
-
-        let runtime: Arc<BackgroundShutdownRuntime> = Arc::new(runtime.into());
-
         let mut managed_sources = HashMap::new();
         {
             let sources = catalog_manager.list_sources().await;
             for source in sources {
                 Self::create_source_worker_async(
-                    runtime.clone(),
                     env.connector_client(),
                     source,
                     &mut managed_sources,
@@ -548,7 +537,6 @@ impl SourceManager {
             core,
             paused: Mutex::new(()),
             metrics,
-            runtime,
         })
     }
 
@@ -691,7 +679,6 @@ impl SourceManager {
             tracing::warn!("source {} already registered", source.get_id());
         } else {
             Self::create_source_worker(
-                self.runtime.clone(),
                 self.env.connector_client(),
                 source,
                 &mut core.managed_sources,
@@ -704,7 +691,6 @@ impl SourceManager {
     }
 
     fn create_source_worker_async(
-        runtime: Arc<BackgroundShutdownRuntime>,
         connector_client: Option<ConnectorClient>,
         source: Source,
         managed_sources: &mut HashMap<SourceId, ConnectorSourceWorkerHandle>,
@@ -720,7 +706,7 @@ impl SourceManager {
 
         let connector_properties = extract_prop_from_source(&source)?;
         let enable_scale_in = connector_properties.enable_split_scale_in();
-        let handle = runtime.spawn(async move {
+        let handle = tokio::spawn(async move {
             let mut ticker = time::interval(Self::DEFAULT_SOURCE_TICK_INTERVAL);
             ticker.set_missed_tick_behavior(MissedTickBehavior::Skip);
 
@@ -764,7 +750,6 @@ impl SourceManager {
     }
 
     async fn create_source_worker(
-        runtime: Arc<BackgroundShutdownRuntime>,
         connector_client: Option<ConnectorClient>,
         source: &Source,
         managed_sources: &mut HashMap<SourceId, ConnectorSourceWorkerHandle>,
@@ -806,7 +791,7 @@ impl SourceManager {
                     })??;
             }
 
-            runtime.spawn(async move { worker.run(sync_call_rx).await })
+            tokio::spawn(async move { worker.run(sync_call_rx).await })
         });
 
         managed_sources.insert(