diff --git a/pulsar-broker-common/src/main/java/org/apache/pulsar/bookie/rackawareness/IsolatedBookieEnsemblePlacementPolicy.java b/pulsar-broker-common/src/main/java/org/apache/pulsar/bookie/rackawareness/IsolatedBookieEnsemblePlacementPolicy.java
index 158e219eca38ca..64bc59057d0f8e 100644
--- a/pulsar-broker-common/src/main/java/org/apache/pulsar/bookie/rackawareness/IsolatedBookieEnsemblePlacementPolicy.java
+++ b/pulsar-broker-common/src/main/java/org/apache/pulsar/bookie/rackawareness/IsolatedBookieEnsemblePlacementPolicy.java
@@ -74,7 +74,7 @@ public RackawareEnsemblePlacementPolicyImpl initialize(ClientConfiguration conf,
             store = BookieRackAffinityMapping.createMetadataStore(conf);
         } catch (MetadataException e) {
             throw new RuntimeException(METADATA_STORE_INSTANCE + " failed initialized");
-        
+        }
         Set<String> primaryIsolationGroups = new HashSet<>();
         Set<String> secondaryIsolationGroups = new HashSet<>();
         if (conf.getProperty(ISOLATION_BOOKIE_GROUPS) != null) {