diff --git a/indexing-hadoop/src/main/java/io/druid/indexer/IndexGeneratorJob.java b/indexing-hadoop/src/main/java/io/druid/indexer/IndexGeneratorJob.java
index ca1db6bcc1d7..414a9a4e3cc8 100644
--- a/indexing-hadoop/src/main/java/io/druid/indexer/IndexGeneratorJob.java
+++ b/indexing-hadoop/src/main/java/io/druid/indexer/IndexGeneratorJob.java
@@ -633,7 +633,7 @@ public void doRun()
                           persist(persistIndex, interval, file, progressIndicator);
                         }
                         catch (Exception e) {
-                          log.error("persist index error", e);
+                          log.error(e, "persist index error");
                           throw Throwables.propagate(e);
                         }
                         finally {
diff --git a/indexing-hadoop/src/main/java/io/druid/indexer/hadoop/DatasourceInputFormat.java b/indexing-hadoop/src/main/java/io/druid/indexer/hadoop/DatasourceInputFormat.java
index 54c9efe4c115..bd304189c695 100644
--- a/indexing-hadoop/src/main/java/io/druid/indexer/hadoop/DatasourceInputFormat.java
+++ b/indexing-hadoop/src/main/java/io/druid/indexer/hadoop/DatasourceInputFormat.java
@@ -144,7 +144,8 @@ public org.apache.hadoop.mapred.InputFormat get()
   };
 
   @VisibleForTesting
-  DatasourceInputFormat setSupplier(Supplier<org.apache.hadoop.mapred.InputFormat> supplier) {
+  DatasourceInputFormat setSupplier(Supplier<org.apache.hadoop.mapred.InputFormat> supplier)
+  {
     this.supplier = supplier;
     return this;
   }
@@ -160,7 +161,7 @@ private DatasourceInputSplit toDataSourceSplit(
       locations = getFrequentLocations(segments, fio, conf);
     }
     catch (Exception e) {
-      logger.error("Exception thrown finding location of splits", e);
+      logger.error(e, "Exception thrown finding location of splits");
     }
     return new DatasourceInputSplit(segments, locations);
   }
@@ -181,7 +182,8 @@ private String[] getFrequentLocations(
     return getFrequentLocations(locations);
   }
 
-  private static String[] getFrequentLocations(Iterable<String> hosts) {
+  private static String[] getFrequentLocations(Iterable<String> hosts)
+  {
 
     final CountingMap<String> counter = new CountingMap<>();
     for (String location : hosts) {