diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java
index 46e4f1a1c0..b07c6762f7 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java
@@ -93,7 +93,6 @@ synchronized void write(HistoryEvent event) throws IOException {
     wrapper.setType(event.getEventType());
     wrapper.setEvent(event.getDatum());
     writer.write(wrapper, encoder);
-    encoder.flush();
     if (this.jsonOutput) {
       out.writeBytes("\n");
     }