diff --git a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
index 297a2f62f47..66dc160fd5f 100644
--- a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
+++ b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
@@ -1148,7 +1148,7 @@ public ClientConfiguration setRecoveryReadBatchSize(int batchSize) {
      * @return true if reorder read sequence is enabled, otherwise false.
      */
     public boolean isReorderReadSequenceEnabled() {
-        return getBoolean(REORDER_READ_SEQUENCE_ENABLED, false);
+        return getBoolean(REORDER_READ_SEQUENCE_ENABLED, true);
     }
 
     /**
diff --git a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/MockBookKeeperTestCase.java b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/MockBookKeeperTestCase.java
index e7710124707..f43b6136c81 100644
--- a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/MockBookKeeperTestCase.java
+++ b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/MockBookKeeperTestCase.java
@@ -96,6 +96,7 @@ public abstract class MockBookKeeperTestCase {
     protected BookieClient bookieClient;
     protected LedgerManager ledgerManager;
     protected LedgerIdGenerator ledgerIdGenerator;
+    protected EnsemblePlacementPolicy placementPolicy;
 
     private BookieWatcher bookieWatcher;
 
@@ -152,6 +153,7 @@ public void setup() throws Exception {
         scheduler = OrderedScheduler.newSchedulerBuilder().numThreads(4).name("bk-test").build();
         executor = OrderedExecutor.newBuilder().build();
         bookieWatcher = mock(BookieWatcher.class);
+        placementPolicy = new DefaultEnsemblePlacementPolicy();
 
         bookieClient = mock(BookieClient.class);
         ledgerManager = mock(LedgerManager.class);
@@ -194,7 +196,7 @@ public BookieWatcher getBookieWatcher() {
 
                 @Override
                 public EnsemblePlacementPolicy getPlacementPolicy() {
-                    return null;
+                    return placementPolicy;
                 }
 
                 @Override
diff --git a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/ReadLastConfirmedAndEntryOpTest.java b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/ReadLastConfirmedAndEntryOpTest.java
index 8e3cfd72e42..760f2490182 100644
--- a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/ReadLastConfirmedAndEntryOpTest.java
+++ b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/ReadLastConfirmedAndEntryOpTest.java
@@ -85,7 +85,7 @@ public class ReadLastConfirmedAndEntryOpTest {
     private ScheduledExecutorService scheduler;
     private OrderedScheduler orderedScheduler;
     private ClientInternalConf internalConf;
-    private EnsemblePlacementPolicy mockPlacementPolicy;
+    private EnsemblePlacementPolicy placementPolicy;
     private LedgerMetadata ledgerMetadata;
     private DistributionSchedule distributionSchedule;
     private DigestManager digestManager;
@@ -121,10 +121,11 @@ public void setup() throws Exception {
             .build();
 
         this.mockBookieClient = mock(BookieClient.class);
-        this.mockPlacementPolicy = mock(EnsemblePlacementPolicy.class);
+        //this.mockPlacementPolicy = mock(EnsemblePlacementPolicy.class);
+        this.placementPolicy = new DefaultEnsemblePlacementPolicy();
         this.mockClientCtx = mock(ClientContext.class);
         when(mockClientCtx.getBookieClient()).thenReturn(mockBookieClient);
-        when(mockClientCtx.getPlacementPolicy()).thenReturn(mockPlacementPolicy);
+        when(mockClientCtx.getPlacementPolicy()).thenReturn(placementPolicy);
         when(mockClientCtx.getConf()).thenReturn(internalConf);
         when(mockClientCtx.getScheduler()).thenReturn(orderedScheduler);
         when(mockClientCtx.getMainWorkerPool()).thenReturn(orderedScheduler);
diff --git a/conf/bk_server.conf b/conf/bk_server.conf
index 79e10f5851d..a87d0d00ac3 100755
--- a/conf/bk_server.conf
+++ b/conf/bk_server.conf
@@ -1057,6 +1057,9 @@ zkEnableSecurity=false
 # Enable/disable having read operations for a ledger to be sticky to a single bookie.
 stickyReadSEnabled=true
 
+# Enable/disable reordering read sequence on reading entries.
+reorderReadSequenceEnabled=true
+
 # The grace period, in milliseconds, that the replication worker waits before fencing and
 # replicating a ledger fragment that's still being written to upon bookie failure.
 # openLedgerRereplicationGracePeriod=30000