diff --git a/core/api/src/main/java/org/onlab/onos/store/service/VersionedValue.java b/core/api/src/main/java/org/onlab/onos/store/service/VersionedValue.java
index c3a4fac..72c5bcd 100644
--- a/core/api/src/main/java/org/onlab/onos/store/service/VersionedValue.java
+++ b/core/api/src/main/java/org/onlab/onos/store/service/VersionedValue.java
@@ -1,7 +1,5 @@
 package org.onlab.onos.store.service;
 
-import static org.onlab.util.HexString.toHexString;
-
 import java.util.Arrays;
 
 import com.google.common.base.MoreObjects;
@@ -66,7 +64,7 @@
     public String toString() {
         return MoreObjects.toStringHelper(getClass())
                 .add("version", version)
-                .add("value", toHexString(value))
+                .add("value", value != null ? "[" + value.length + " bytes]" : value)
                 .toString();
     }
 }
diff --git a/core/api/src/main/java/org/onlab/onos/store/service/WriteRequest.java b/core/api/src/main/java/org/onlab/onos/store/service/WriteRequest.java
index bc2f527..3800a83 100644
--- a/core/api/src/main/java/org/onlab/onos/store/service/WriteRequest.java
+++ b/core/api/src/main/java/org/onlab/onos/store/service/WriteRequest.java
@@ -3,7 +3,6 @@
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static org.onlab.onos.store.service.WriteRequest.Type.*;
-import static org.onlab.util.HexString.toHexString;
 
 import java.util.Objects;
 
@@ -190,9 +189,9 @@
                 .add("type", type)
                 .add("tableName", tableName)
                 .add("key", key)
-                .add("newValue", toHexString(newValue))
+                .add("newValue", newValue != null ? "[" + newValue.length + " bytes]" : newValue)
                 .add("previousVersion", previousVersion)
-                .add("oldValue", toHexString(oldValue))
+                .add("oldValue", oldValue != null ? "[" + oldValue.length + " bytes]" : oldValue)
                 .toString();
     }