diff --git a/elx-api/src/main/java/org/xbib/elx/api/BasicClient.java b/elx-api/src/main/java/org/xbib/elx/api/BasicClient.java
index 54b8b83..b65d05a 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/BasicClient.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/BasicClient.java
@@ -4,10 +4,13 @@ import org.elasticsearch.client.ElasticsearchClient;
 import org.elasticsearch.common.settings.Settings;
 import java.io.Closeable;
 import java.io.IOException;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 public interface BasicClient extends Closeable {
 
+    void putClusterSetting(String key, Object value, long timeout, TimeUnit timeUnit) throws IOException;
+
     /**
      * Set an Elasticsearch client to extend from it. May be null for TransportClient.
      * @param client the Elasticsearch client
@@ -59,4 +62,6 @@ public interface BasicClient extends Closeable {
     long getSearchableDocs(IndexDefinition indexDefinition);
 
     boolean isIndexExists(IndexDefinition indexDefinition);
+
+    ScheduledThreadPoolExecutor getScheduler();
 }
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkClient.java b/elx-api/src/main/java/org/xbib/elx/api/BulkClient.java
index 8072981..0ad3aa0 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkClient.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/BulkClient.java
@@ -10,12 +10,6 @@ import java.util.concurrent.TimeUnit;
 
 public interface BulkClient extends BasicClient, Flushable {
 
-    /**
-     * Get bulk control.
-     * @return the bulk control
-     */
-    BulkController getBulkController();
-
     /**
      * Create a new index.
      * @param indexDefinition the index definition
@@ -42,8 +36,8 @@ public interface BulkClient extends BasicClient, Flushable {
      * Add index request. Each request will be added to a queue for bulking requests.
      * Submitting request will be done when limits are exceeded.
      *
-     * @param indexDefinition  the index definition
-     * @param id     the id
+     * @param indexDefinition the index definition
+     * @param id the id
      * @param create true if document must be created
      * @param source the source
      * @return this
@@ -155,4 +149,5 @@ public interface BulkClient extends BasicClient, Flushable {
      */
     void flushIndex(IndexDefinition indexDefinition);
 
+    BulkProcessor getBulkController();
 }
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkController.java b/elx-api/src/main/java/org/xbib/elx/api/BulkController.java
deleted file mode 100644
index daaf68f..0000000
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkController.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package org.xbib.elx.api;
-
-import org.elasticsearch.action.delete.DeleteRequest;
-import org.elasticsearch.action.index.IndexRequest;
-import org.elasticsearch.action.update.UpdateRequest;
-import org.elasticsearch.common.settings.Settings;
-
-import java.io.Closeable;
-import java.io.Flushable;
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-
-public interface BulkController extends Closeable, Flushable {
-
-    void init(Settings settings);
-
-    void inactivate();
-
-    BulkProcessor getBulkProcessor();
-
-    BulkMetric getBulkMetric();
-
-    Throwable getLastBulkError();
-
-    void startBulkMode(IndexDefinition indexDefinition) throws IOException;
-
-    void bulkIndex(IndexRequest indexRequest);
-
-    void bulkDelete(DeleteRequest deleteRequest);
-
-    void bulkUpdate(UpdateRequest updateRequest);
-
-    boolean waitForBulkResponses(long timeout, TimeUnit timeUnit);
-
-    void stopBulkMode(IndexDefinition indexDefinition) throws IOException;
-}
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkListener.java b/elx-api/src/main/java/org/xbib/elx/api/BulkListener.java
index f434ed4..362dcb5 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkListener.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/BulkListener.java
@@ -2,11 +2,12 @@ package org.xbib.elx.api;
 
 import org.elasticsearch.action.bulk.BulkRequest;
 import org.elasticsearch.action.bulk.BulkResponse;
+import java.io.Closeable;
 
 /**
  * A bulk listener for following executions of bulk operations.
  */
-public interface BulkListener {
+public interface BulkListener extends Closeable {
 
     /**
      * Callback before the bulk is executed.
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkMetric.java b/elx-api/src/main/java/org/xbib/elx/api/BulkMetric.java
index b7d11e0..cb27111 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkMetric.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/BulkMetric.java
@@ -1,6 +1,7 @@
 package org.xbib.elx.api;
 
-import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.action.bulk.BulkRequest;
+import org.elasticsearch.action.bulk.BulkResponse;
 import org.xbib.metrics.api.Count;
 import org.xbib.metrics.api.Metered;
 
@@ -8,8 +9,6 @@ import java.io.Closeable;
 
 public interface BulkMetric extends Closeable {
 
-    void init(Settings settings);
-
     void markTotalIngest(long n);
 
     Metered getTotalIngest();
@@ -31,4 +30,6 @@ public interface BulkMetric extends Closeable {
     void start();
 
     void stop();
+
+    void recalculate(BulkRequest request, BulkResponse response);
 }
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkProcessor.java b/elx-api/src/main/java/org/xbib/elx/api/BulkProcessor.java
index fab2a18..a59fd28 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkProcessor.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/BulkProcessor.java
@@ -4,21 +4,30 @@ import org.elasticsearch.action.DocWriteRequest;
 
 import java.io.Closeable;
 import java.io.Flushable;
+import java.io.IOException;
 import java.util.concurrent.TimeUnit;
 
 public interface BulkProcessor extends Closeable, Flushable {
 
-    void setBulkActions(int bulkActions);
+    void setEnabled(boolean enabled);
 
-    int getBulkActions();
+    void startBulkMode(IndexDefinition indexDefinition) throws IOException;
 
-    void setBulkSize(long bulkSize);
+    void stopBulkMode(IndexDefinition indexDefinition) throws IOException;
 
-    long getBulkSize();
+    void setMaxBulkActions(int bulkActions);
 
-    BulkProcessor add(DocWriteRequest<?> request);
+    int getMaxBulkActions();
 
-    boolean awaitFlush(long timeout, TimeUnit unit) throws InterruptedException;
+    void setMaxBulkVolume(long bulkSize);
 
-    boolean awaitClose(long timeout, TimeUnit unit) throws InterruptedException;
+    long getMaxBulkVolume();
+
+    void add(DocWriteRequest<?> request);
+
+    boolean waitForBulkResponses(long timeout, TimeUnit unit);
+
+    BulkMetric getBulkMetric();
+
+    Throwable getLastBulkError();
 }
diff --git a/elx-api/src/main/java/org/xbib/elx/api/BulkRequestHandler.java b/elx-api/src/main/java/org/xbib/elx/api/BulkRequestHandler.java
deleted file mode 100644
index 1bc3886..0000000
--- a/elx-api/src/main/java/org/xbib/elx/api/BulkRequestHandler.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package org.xbib.elx.api;
-
-import org.elasticsearch.action.bulk.BulkRequest;
-import java.util.concurrent.TimeUnit;
-
-public interface BulkRequestHandler {
-
-    void execute(BulkRequest bulkRequest, long executionId);
-
-    boolean close(long timeout, TimeUnit unit) throws InterruptedException;
-}