diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/AbstractIoOperation.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/AbstractIoOperation.java
index 8317ca7..a5f70d9 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/AbstractIoOperation.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/AbstractIoOperation.java
@@ -44,7 +44,7 @@
     private volatile Throwable failure;
     private LSMIOOperationStatus status = LSMIOOperationStatus.SUCCESS;
     private ILSMDiskComponent newComponent;
-    private boolean completed = false;
+    private volatile boolean completed = false;
     private List<IoOperationCompleteListener> completeListeners;
 
     private final AtomicBoolean isActive = new AtomicBoolean(true);
@@ -203,7 +203,7 @@
     }
 
     @Override
-    public synchronized boolean isCompleted() {
+    public boolean isCompleted() {
         return completed;
     }