diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
index 30736c0..1768c87 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
@@ -134,7 +134,7 @@
                         dataset.getDatasetId()), compactionInfo.first, compactionInfo.second,
                         new PrimaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                         AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER, LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()));
+                        storageProperties.getBloomFilterFalsePositiveRate(), false));
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specPrimary, primaryBtreeDrop,
                 splitsAndConstraint.second);
 
@@ -189,7 +189,7 @@
                         compactionInfo.first, compactionInfo.second, new PrimaryIndexOperationTrackerProvider(dataset
                                 .getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                         LSMBTreeIOOperationCallbackFactory.INSTANCE, storageProperties
-                                .getBloomFilterFalsePositiveRate()), localResourceFactoryProvider,
+                                .getBloomFilterFalsePositiveRate(), true), localResourceFactoryProvider,
                 NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, indexCreateOp,
                 splitsAndConstraint.second);
@@ -277,7 +277,8 @@
                             compactionInfo.second, new PrimaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                             AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                             LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                            storageProperties.getBloomFilterFalsePositiveRate()), NoOpOperationCallbackFactory.INSTANCE);
+                            /* TODO verify whether key dup check is required or not during bulkload: I guess not*/ 
+                            storageProperties.getBloomFilterFalsePositiveRate(), false), NoOpOperationCallbackFactory.INSTANCE);
             AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, btreeBulkLoad,
                     splitsAndConstraint.second);
 
@@ -302,7 +303,8 @@
                             compactionInfo.second, new PrimaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                             AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                             LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                            storageProperties.getBloomFilterFalsePositiveRate()), NoOpOperationCallbackFactory.INSTANCE);
+                            /* TODO verify whether key dup check is required or not during bulkload: I guess not*/ 
+                            storageProperties.getBloomFilterFalsePositiveRate(), false), NoOpOperationCallbackFactory.INSTANCE);
             AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, btreeBulkLoad,
                     splitsAndConstraint.second);
 
@@ -402,7 +404,7 @@
                         compactionInfo.first, compactionInfo.second, new PrimaryIndexOperationTrackerProvider(
                                 dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                         LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()), NoOpOperationCallbackFactory.INSTANCE);
+                        storageProperties.getBloomFilterFalsePositiveRate(), false), NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper
                 .setPartitionConstraintInJobSpec(spec, compactOp, splitsAndConstraint.second);
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
index 3584993..5e3f7de 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
@@ -86,7 +86,7 @@
                         dataset.getDatasetId()), compactionInfo.first, compactionInfo.second,
                         new SecondaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                         AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER, LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()));
+                        storageProperties.getBloomFilterFalsePositiveRate(), false));
         AlgebricksPartitionConstraintHelper
                 .setPartitionConstraintInJobSpec(spec, btreeDrop, splitsAndConstraint.second);
         spec.addRoot(btreeDrop);
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeOperationsHelper.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeOperationsHelper.java
index ebebbdd..c5c214e 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeOperationsHelper.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeOperationsHelper.java
@@ -69,7 +69,7 @@
                         dataset.getDatasetId()), mergePolicyFactory, mergePolicyFactoryProperties,
                         new SecondaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                         AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER, LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()), localResourceFactoryProvider,
+                        storageProperties.getBloomFilterFalsePositiveRate(), false), localResourceFactoryProvider,
                 NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryIndexCreateOp,
                 secondaryPartitionConstraint);
@@ -109,7 +109,7 @@
                         mergePolicyFactory, mergePolicyFactoryProperties, new SecondaryIndexOperationTrackerProvider(
                                 dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                         LSMBTreeIOOperationCallbackFactory.INSTANCE, storageProperties
-                                .getBloomFilterFalsePositiveRate()), BTree.DEFAULT_FILL_FACTOR);
+                                .getBloomFilterFalsePositiveRate(), false), BTree.DEFAULT_FILL_FACTOR);
 
         // Connect the operators.
         spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
@@ -138,7 +138,7 @@
                         dataset.getDatasetId()), mergePolicyFactory, mergePolicyFactoryProperties,
                         new SecondaryIndexOperationTrackerProvider(dataset.getDatasetId()),
                         AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER, LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()), NoOpOperationCallbackFactory.INSTANCE);
+                        storageProperties.getBloomFilterFalsePositiveRate(), false), NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, compactOp,
                 secondaryPartitionConstraint);
         spec.addRoot(compactOp);
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexOperationsHelper.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexOperationsHelper.java
index 34a008f..f2a8438 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexOperationsHelper.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexOperationsHelper.java
@@ -315,7 +315,7 @@
                         mergePolicyFactory, mergePolicyFactoryProperties, new PrimaryIndexOperationTrackerProvider(
                                 dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                         LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                        storageProperties.getBloomFilterFalsePositiveRate()), false, searchCallbackFactory);
+                        storageProperties.getBloomFilterFalsePositiveRate(), true), false, searchCallbackFactory);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
                 primaryPartitionConstraint);
         return primarySearchOp;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
index 2f11190..478e548 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
@@ -398,7 +398,7 @@
                     runtimeContext.getMetadataMergePolicyFactory().createMergePolicy(
                             GlobalConfig.DEFAULT_COMPACTION_POLICY_PROPERTIES), opTracker,
                     runtimeContext.getLSMIOScheduler(),
-                    LSMBTreeIOOperationCallbackFactory.INSTANCE.createIOOperationCallback());
+                    LSMBTreeIOOperationCallbackFactory.INSTANCE.createIOOperationCallback(), index.isPrimaryIndex());
             lsmBtree.create();
             resourceID = runtimeContext.getResourceIdFactory().createId();
             ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
@@ -419,7 +419,7 @@
                                 .getBloomFilterFalsePositiveRate(), runtimeContext.getMetadataMergePolicyFactory()
                                 .createMergePolicy(GlobalConfig.DEFAULT_COMPACTION_POLICY_PROPERTIES), opTracker,
                         runtimeContext.getLSMIOScheduler(), LSMBTreeIOOperationCallbackFactory.INSTANCE
-                                .createIOOperationCallback());
+                                .createIOOperationCallback(), index.isPrimaryIndex());
                 indexLifecycleManager.register(resourceID, lsmBtree);
             }
         }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
index 972415a..c604dbc 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
@@ -570,7 +570,7 @@
                             compactionInfo.second, isSecondary ? new SecondaryIndexOperationTrackerProvider(
                                     dataset.getDatasetId()) : new PrimaryIndexOperationTrackerProvider(
                                     dataset.getDatasetId()), rtcProvider, LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                            storageProperties.getBloomFilterFalsePositiveRate()), retainInput, searchCallbackFactory);
+                            storageProperties.getBloomFilterFalsePositiveRate(), !isSecondary), retainInput, searchCallbackFactory);
 
             return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeSearchOp, spPc.second);
 
@@ -800,7 +800,7 @@
                             compactionInfo.first, compactionInfo.second, new PrimaryIndexOperationTrackerProvider(
                                     dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                             LSMBTreeIOOperationCallbackFactory.INSTANCE,
-                            storageProperties.getBloomFilterFalsePositiveRate()), NoOpOperationCallbackFactory.INSTANCE);
+                            storageProperties.getBloomFilterFalsePositiveRate(), false), NoOpOperationCallbackFactory.INSTANCE);
             return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad,
                     splitsAndConstraint.second);
         } catch (MetadataException me) {
@@ -869,7 +869,7 @@
                             compactionInfo.first, compactionInfo.second, new PrimaryIndexOperationTrackerProvider(
                                     dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                             LSMBTreeIOOperationCallbackFactory.INSTANCE, storageProperties
-                                    .getBloomFilterFalsePositiveRate()), null, modificationCallbackFactory, true,
+                                    .getBloomFilterFalsePositiveRate(), true), null, modificationCallbackFactory, true,
                     indexName);
 
             return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(insertDeleteOp,
@@ -1065,7 +1065,7 @@
                             compactionInfo.first, compactionInfo.second, new SecondaryIndexOperationTrackerProvider(
                                     dataset.getDatasetId()), AsterixRuntimeComponentsProvider.RUNTIME_PROVIDER,
                             LSMBTreeIOOperationCallbackFactory.INSTANCE, storageProperties
-                                    .getBloomFilterFalsePositiveRate()), filterFactory, modificationCallbackFactory,
+                                    .getBloomFilterFalsePositiveRate(), false), filterFactory, modificationCallbackFactory,
                     false, indexName);
             return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad,
                     splitsAndConstraint.second);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
index 6061cbe..3951226 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
@@ -66,7 +66,7 @@
                 isPrimary ? runtimeContextProvider.getLSMBTreeOperationTracker(datasetID) : new BaseOperationTracker(
                         (DatasetLifecycleManager) runtimeContextProvider.getIndexLifecycleManager(), datasetID),
                 runtimeContextProvider.getLSMIOScheduler(), LSMBTreeIOOperationCallbackFactory.INSTANCE
-                        .createIOOperationCallback());
+                        .createIOOperationCallback(), isPrimary);
         return lsmBTree;
     }