diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/StoragePartitionServer.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/StoragePartitionServer.java
index dcf98f6..d674ebe 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/StoragePartitionServer.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/StoragePartitionServer.java
@@ -116,6 +116,7 @@
                 .withStorage(Storage.builder()
                          // FIXME: StorageLevel should be DISK
                         .withStorageLevel(StorageLevel.MEMORY)
+                        .withCompactionThreads(1)
                         .withDirectory(dataFolder)
                         .withMaxEntriesPerSegment(MAX_ENTRIES_PER_LOG_SEGMENT)
                         .build())