Random binary string as prefix to index uuid

Signed-off-by: Ashish Singh <ssashish@amazon.com>
ashking94 · Oct 11, 2023 · 35e6efe · 35e6efe
1 parent c0852f8
commit 35e6efe
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java b/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java
@@ -63,6 +63,7 @@
 import org.opensearch.cluster.service.ClusterService;
 import org.opensearch.common.Nullable;
 import org.opensearch.common.Priority;
+import org.opensearch.common.Randomness;
 import org.opensearch.common.UUIDs;
 import org.opensearch.common.ValidationException;
 import org.opensearch.common.compress.CompressedXContent;
@@ -111,6 +112,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
+import java.util.Random;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.BiConsumer;
@@ -164,6 +166,7 @@ public class MetadataCreateIndexService {
     private final Set<IndexSettingProvider> indexSettingProviders = new HashSet<>();
     private final ClusterManagerTaskThrottler.ThrottlingKey createIndexTaskKey;
     private AwarenessReplicaBalance awarenessReplicaBalance;
+    private static final Random RANDOM_INT_GENERATOR = Randomness.get();
 
     public MetadataCreateIndexService(
         final Settings settings,
@@ -889,7 +892,7 @@ static Settings aggregateIndexSettings(
             indexSettingsBuilder.put(SETTING_CREATION_DATE, Instant.now().toEpochMilli());
         }
         indexSettingsBuilder.put(IndexMetadata.SETTING_INDEX_PROVIDED_NAME, request.getProvidedName());
-        indexSettingsBuilder.put(SETTING_INDEX_UUID, UUIDs.randomBase64UUID());
+        indexSettingsBuilder.put(SETTING_INDEX_UUID, Integer.toBinaryString(RANDOM_INT_GENERATOR.nextInt(256)) + UUIDs.randomBase64UUID());
 
         updateReplicationStrategy(indexSettingsBuilder, request.settings(), settings);
         updateRemoteStoreSettings(indexSettingsBuilder, settings);