diff --git a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/extractor/ConfigRegionListeningQueue.java b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/extractor/ConfigRegionListeningQueue.java
index 36d489f27521..8fe2dce73a8f 100644
--- a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/extractor/ConfigRegionListeningQueue.java
+++ b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/extractor/ConfigRegionListeningQueue.java
@@ -155,8 +155,7 @@ protected Event deserializeFromByteBuffer(final ByteBuffer byteBuffer) {
   /////////////////////////////// Snapshot ///////////////////////////////
 
   @Override
-  public synchronized boolean processTakeSnapshot(final File snapshotDir)
-      throws IOException {
+  public synchronized boolean processTakeSnapshot(final File snapshotDir) throws IOException {
     try {
       return super.serializeToFile(new File(snapshotDir, SNAPSHOT_FILE_NAME));
     } catch (final IOException e) {
@@ -171,7 +170,7 @@ public synchronized void processLoadSnapshot(final File snapshotDir)
       throws TException, IOException {
     try {
       super.deserializeFromFile(new File(snapshotDir, SNAPSHOT_FILE_NAME));
-    }catch (final IOException e) {
+    } catch (final IOException e) {
       throw e;
     } catch (final Exception e) {
       throw new IOException(e);