diff --git a/elx-api/src/main/java/org/xbib/elx/api/AdminClient.java b/elx-api/src/main/java/org/xbib/elx/api/AdminClient.java
index 0c5e71a..0e6dbe5 100644
--- a/elx-api/src/main/java/org/xbib/elx/api/AdminClient.java
+++ b/elx-api/src/main/java/org/xbib/elx/api/AdminClient.java
@@ -1,6 +1,5 @@
 package org.xbib.elx.api;
 
-import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 
@@ -9,7 +8,7 @@ import java.util.Map;
  */
 public interface AdminClient extends BasicClient {
 
-    Map<String, ?> getMapping(IndexDefinition indexDefinition) throws IOException;
+    Map<String, ?> getMapping(IndexDefinition indexDefinition);
 
     void checkMapping(IndexDefinition indexDefinition);
 
@@ -25,9 +24,8 @@ public interface AdminClient extends BasicClient {
      * @param indexDefinition the index definition
      * @param level the replica level
      * @return this
-     * @throws IOException if replica setting could not be updated
      */
-    AdminClient updateReplicaLevel(IndexDefinition indexDefinition, int level) throws IOException;
+    AdminClient updateReplicaLevel(IndexDefinition indexDefinition, int level);
 
     /**
      * Get replica level.
@@ -92,7 +90,6 @@ public interface AdminClient extends BasicClient {
      * @param indexDefinition the index definition
      * @param timestampfieldname the timestamp field name
      * @return millis UTC millis of the most recent document
-     * @throws IOException if most rcent document can not be found
      */
-    Long mostRecentDocument(IndexDefinition indexDefinition, String timestampfieldname) throws IOException;
+    Long mostRecentDocument(IndexDefinition indexDefinition, String timestampfieldname);
 }
diff --git a/elx-common/src/main/java/org/xbib/elx/common/AbstractAdminClient.java b/elx-common/src/main/java/org/xbib/elx/common/AbstractAdminClient.java
index f271fc1..203fdb2 100644
--- a/elx-common/src/main/java/org/xbib/elx/common/AbstractAdminClient.java
+++ b/elx-common/src/main/java/org/xbib/elx/common/AbstractAdminClient.java
@@ -117,7 +117,7 @@ public abstract class AbstractAdminClient extends AbstractBasicClient implements
     }
 
     @Override
-    public AdminClient updateReplicaLevel(IndexDefinition indexDefinition, int level) throws IOException {
+    public AdminClient updateReplicaLevel(IndexDefinition indexDefinition, int level) {
         if (isIndexDefinitionDisabled(indexDefinition)) {
             return null;
         }
@@ -415,16 +415,14 @@ public abstract class AbstractAdminClient extends AbstractBasicClient implements
     }
 
     @Override
-    public void updateIndexSetting(String index, String key, Object value, long timeout, TimeUnit timeUnit) throws IOException {
-        if (index == null) {
-            throw new IOException("no index name given");
-        }
+    public void updateIndexSetting(String index, String key, Object value, long timeout, TimeUnit timeUnit) {
         ensureClientIsPresent();
         Settings.Builder updateSettingsBuilder = Settings.builder();
         updateSettingsBuilder.put(key, value.toString());
         UpdateSettingsRequest updateSettingsRequest = new UpdateSettingsRequest(index)
                 .settings(updateSettingsBuilder).timeout(toTimeValue(timeout, timeUnit));
         client.execute(UpdateSettingsAction.INSTANCE, updateSettingsRequest).actionGet();
+        waitForCluster("GREEN", 300L, TimeUnit.SECONDS);
     }
 
     @Override
diff --git a/gradle.properties b/gradle.properties
index fed8911..d58c194 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 group = org.xbib
 name = elx
-version = 2.2.1.42
+version = 2.2.1.43
 
 gradle.wrapper.version = 6.6.1
 xbib-metrics.version = 2.1.0