diff --git a/commons/src/main/java/org/archive/bdb/BdbModule.java b/commons/src/main/java/org/archive/bdb/BdbModule.java
index 74aebe3f..d9b69bd5 100644
--- a/commons/src/main/java/org/archive/bdb/BdbModule.java
+++ b/commons/src/main/java/org/archive/bdb/BdbModule.java
@@ -321,7 +321,7 @@ public class BdbModule implements Lifecycle, Checkpointable, Closeable {
      * @return
      * @throws DatabaseException
      */
-    public Database openManagedDatabase(String name, BdbConfig config, boolean usePriorData) 
+    public Database openDatabase(String name, BdbConfig config, boolean usePriorData) 
     throws DatabaseException {
         if(!isRunning()) {
             // proper initialization hasn't occurred
@@ -360,7 +360,7 @@ public class BdbModule implements Lifecycle, Checkpointable, Closeable {
     public <K extends Serializable> StoredQueue<K> getStoredQueue(String dbname, Class<K> clazz, boolean b) {
         try {
             Database queueDb;
-            queueDb = openManagedDatabase(dbname,
+            queueDb = openDatabase(dbname,
                     StoredQueue.databaseConfig(), false);
             return new StoredQueue<K>(queueDb, clazz, getClassCatalog());
         } catch (DatabaseException e) {
@@ -637,10 +637,10 @@ public class BdbModule implements Lifecycle, Checkpointable, Closeable {
      * @param allowDuplicates whether duplicate keys allowed
      * @return
      */
-    public <K,V> DisposableStoredSortedMap<K, V> getStoredMap(String dbName, Class<K> keyClass, Class<V> valueClass, boolean allowDuplicates) {
+    public <K,V> DisposableStoredSortedMap<K, V> getStoredMap(String dbName, Class<K> keyClass, Class<V> valueClass, boolean allowDuplicates, boolean usePriorData) {
         BdbConfig config = new BdbConfig(); 
-        config.setSortedDuplicates(true);
-        config.setAllowCreate(true); 
+        config.setSortedDuplicates(allowDuplicates);
+        config.setAllowCreate(!usePriorData); 
         Database mapDb;
         if(dbName==null) {
             dbName = "tempMap-"+System.identityHashCode(this)+"-"+sn;
@@ -648,7 +648,7 @@ public class BdbModule implements Lifecycle, Checkpointable, Closeable {
         }
         final String openName = dbName; 
         try {
-            mapDb = openManagedDatabase(openName,config,false);
+            mapDb = openDatabase(openName,config,usePriorData);
         } catch (DatabaseException e) {
             throw new RuntimeException(e); 
         } 
diff --git a/engine/src/main/java/org/archive/crawler/frontier/precedence/PreloadedUriPrecedencePolicy.java b/engine/src/main/java/org/archive/crawler/frontier/precedence/PreloadedUriPrecedencePolicy.java
index f8147fdc..77be1e37 100644
--- a/engine/src/main/java/org/archive/crawler/frontier/precedence/PreloadedUriPrecedencePolicy.java
+++ b/engine/src/main/java/org/archive/crawler/frontier/precedence/PreloadedUriPrecedencePolicy.java
@@ -81,7 +81,7 @@ implements Lifecycle {
             StoredClassCatalog classCatalog = bdb.getClassCatalog();
             BdbModule.BdbConfig dbConfig = PersistProcessor.HISTORY_DB_CONFIG;
 
-            historyDb = bdb.openManagedDatabase(dbName, dbConfig, true);
+            historyDb = bdb.openDatabase(dbName, dbConfig, true);
             historyMap = new StoredSortedMap(historyDb,
                     new StringBinding(), new SerialBinding(classCatalog,
                             Map.class), true);
diff --git a/engine/src/main/java/org/archive/crawler/reporting/StatisticsTracker.java b/engine/src/main/java/org/archive/crawler/reporting/StatisticsTracker.java
index a5369a20..285ac372 100644
--- a/engine/src/main/java/org/archive/crawler/reporting/StatisticsTracker.java
+++ b/engine/src/main/java/org/archive/crawler/reporting/StatisticsTracker.java
@@ -694,7 +694,8 @@ public class StatisticsTracker
                     null,
                     Long.class,
                     String.class,
-                    true);
+                    true,
+                    false);
         for(String k : mapOfAtomicLongValues.keySet()) {
             sortedMap.put(-mapOfAtomicLongValues.get(k).longValue(), k);
         }
@@ -723,7 +724,8 @@ public class StatisticsTracker
                     null,
                     Long.class,
                     String.class,
-                    true);
+                    true,
+                    false);
         for(String k : cacheOfAtomicLongValues.keySet()) {
             sortedMap.put(-cacheOfAtomicLongValues.get(k).longValue(), k);
         }
@@ -895,7 +897,8 @@ public class StatisticsTracker
                     null,
                     Integer.class,
                     SeedRecord.class,
-                    true);
+                    true,
+                    false);
         
         while (i.hasNext()) {
             String seed = i.next();
diff --git a/engine/src/main/java/org/archive/crawler/util/BdbUriUniqFilter.java b/engine/src/main/java/org/archive/crawler/util/BdbUriUniqFilter.java
index cead8031..ef27d6ce 100644
--- a/engine/src/main/java/org/archive/crawler/util/BdbUriUniqFilter.java
+++ b/engine/src/main/java/org/archive/crawler/util/BdbUriUniqFilter.java
@@ -106,7 +106,7 @@ implements Lifecycle, Checkpointable, BeanNameAware {
         try {
             BdbModule.BdbConfig config = getDatabaseConfig();
             config.setAllowCreate(!isRecovery);
-            initialize(bdb.openManagedDatabase(DB_NAME, config, isRecovery));
+            initialize(bdb.openDatabase(DB_NAME, config, isRecovery));
         } catch (DatabaseException e) {
             throw new IllegalStateException(e);
         }
diff --git a/modules/src/main/java/org/archive/modules/fetcher/BdbCookieStorage.java b/modules/src/main/java/org/archive/modules/fetcher/BdbCookieStorage.java
index 5ca1abb6..c310257c 100644
--- a/modules/src/main/java/org/archive/modules/fetcher/BdbCookieStorage.java
+++ b/modules/src/main/java/org/archive/modules/fetcher/BdbCookieStorage.java
@@ -19,9 +19,6 @@
 
 package org.archive.modules.fetcher;
 
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
 import java.util.Map;
 import java.util.SortedMap;
 
@@ -65,7 +62,7 @@ public class BdbCookieStorage extends AbstractCookieStorage {
             BdbModule.BdbConfig dbConfig = new BdbModule.BdbConfig();
             dbConfig.setTransactional(false);
             dbConfig.setAllowCreate(true);
-            cookieDb = bdb.openManagedDatabase(COOKIEDB_NAME, dbConfig, true);
+            cookieDb = bdb.openDatabase(COOKIEDB_NAME, dbConfig, true);
             cookies = 
                 new StoredSortedMap<String,Cookie>(
                     cookieDb,
@@ -80,37 +77,12 @@ public class BdbCookieStorage extends AbstractCookieStorage {
         }
     }
 
-
     @SuppressWarnings("unchecked")
     public SortedMap<String, Cookie> getCookiesMap() {
 //        assert cookies != null : "cookie map not set up";
         return cookies;
     }
 
-
     protected void innerSaveCookiesMap(Map<String, Cookie> map) {
     }
-
-
-    private void writeObject(ObjectOutputStream out) throws IOException {
-        out.defaultWriteObject();
-        try {
-            out.writeUTF(cookieDb.getDatabaseName());
-        } catch (DatabaseException e) {
-            IOException io = new IOException();
-            io.initCause(e);
-            throw io;
-        }
-    }
-    
-    @SuppressWarnings("unchecked")
-    private void readObject(ObjectInputStream in)
-    throws IOException, ClassNotFoundException {
-        in.defaultReadObject();
-        cookieDb = bdb.getDatabase(in.readUTF());
-        cookies = new StoredSortedMap(cookieDb,
-                new StringBinding(), new SerialBinding(bdb.getClassCatalog(),
-                        Cookie.class), true);        
-    }
-    
 }
diff --git a/modules/src/main/java/org/archive/modules/recrawl/PersistOnlineProcessor.java b/modules/src/main/java/org/archive/modules/recrawl/PersistOnlineProcessor.java
index ece88d04..ec40ead7 100644
--- a/modules/src/main/java/org/archive/modules/recrawl/PersistOnlineProcessor.java
+++ b/modules/src/main/java/org/archive/modules/recrawl/PersistOnlineProcessor.java
@@ -76,7 +76,7 @@ implements Lifecycle {
             StoredClassCatalog classCatalog = bdb.getClassCatalog();
             BdbModule.BdbConfig dbConfig = HISTORY_DB_CONFIG;
 
-            historyDb = bdb.openManagedDatabase(getHistoryDbName(), dbConfig, true);
+            historyDb = bdb.openDatabase(getHistoryDbName(), dbConfig, true);
             historyMap = 
                 new StoredSortedMap<String,Map>(
                         historyDb,