diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
index 0f3e3ce..6c01b29 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
@@ -23,11 +23,10 @@
 public class LSMBTreeMutableComponent extends AbstractMutableLSMComponent {
 
     private final BTree btree;
-    private final IVirtualBufferCache vbc;
 
     public LSMBTreeMutableComponent(BTree btree, IVirtualBufferCache vbc) {
+        super(vbc);
         this.btree = btree;
-        this.vbc = vbc;
     }
 
     public BTree getBTree() {
@@ -35,11 +34,6 @@
     }
 
     @Override
-    protected boolean isFull() {
-        return vbc.isFull();
-    }
-
-    @Override
     protected void reset() throws HyracksDataException {
         super.reset();
         btree.deactivate();
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
index 7180492..43501f9 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
@@ -14,8 +14,11 @@
  */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
+import java.util.concurrent.atomic.AtomicBoolean;
+
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 
 public abstract class AbstractMutableLSMComponent implements ILSMComponent {
 
@@ -23,8 +26,9 @@
     private int writerCount;
     private ComponentState state;
     private IMutableResetCallback resetCallback;
+    private final IVirtualBufferCache vbc;
 
-    private boolean isModified;
+    private final AtomicBoolean isModified;
 
     private enum ComponentState {
         READABLE_WRITABLE,
@@ -33,11 +37,12 @@
         UNREADABLE_UNWRITABLE
     }
 
-    public AbstractMutableLSMComponent() {
+    public AbstractMutableLSMComponent(IVirtualBufferCache vbc) {
+        this.vbc = vbc;
         readerCount = 0;
         writerCount = 0;
         state = ComponentState.READABLE_WRITABLE;
-        isModified = false;
+        isModified = new AtomicBoolean();
     }
 
     @Override
@@ -123,16 +128,18 @@
     }
 
     public void setIsModified() {
-        isModified = true;
+        isModified.set(true);
     }
 
     public boolean isModified() {
-        return isModified;
+        return isModified.get();
     }
 
-    protected abstract boolean isFull();
+    public boolean isFull() {
+        return vbc.isFull();
+    }
 
     protected void reset() throws HyracksDataException {
-        isModified = false;
+        isModified.set(false);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
index 7084803..d6c3c5e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
@@ -25,12 +25,11 @@
 
     private final IInvertedIndex invIndex;
     private final BTree deletedKeysBTree;
-    private final IVirtualBufferCache vbc;
 
     public LSMInvertedIndexMutableComponent(IInvertedIndex invIndex, BTree deletedKeysBTree, IVirtualBufferCache vbc) {
+        super(vbc);
         this.invIndex = invIndex;
         this.deletedKeysBTree = deletedKeysBTree;
-        this.vbc = vbc;
     }
 
     public IInvertedIndex getInvIndex() {
@@ -42,11 +41,6 @@
     }
 
     @Override
-    protected boolean isFull() {
-        return vbc.isFull();
-    }
-
-    @Override
     protected void reset() throws HyracksDataException {
         super.reset();
         invIndex.deactivate();
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
index 7d572ad..ffe583c 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
@@ -25,12 +25,11 @@
 
     private final RTree rtree;
     private final BTree btree;
-    private final IVirtualBufferCache vbc;
 
     public LSMRTreeMutableComponent(RTree rtree, BTree btree, IVirtualBufferCache vbc) {
+        super(vbc);
         this.rtree = rtree;
         this.btree = btree;
-        this.vbc = vbc;
     }
 
     public RTree getRTree() {
@@ -42,11 +41,6 @@
     }
 
     @Override
-    protected boolean isFull() {
-        return vbc.isFull();
-    }
-
-    @Override
     protected void reset() throws HyracksDataException {
         super.reset();
         rtree.deactivate();