MAPREDUCE-6610. JobHistoryEventHandler should not swallow timeline response. Contributed by Li Lu

hadoop-mapreduce-project/CHANGES.txt

@@ -698,6 +698,9 @@ Release 2.8.0 - UNRELEASED
     MAPREDUCE-6614. Remove unnecessary code in TestMapreduceConfigFields.
     (Kai Sasaki via aajisaka)
 
+    MAPREDUCE-6610. JobHistoryEventHandler should not swallow timeline response
+    (Li Lu via jianhe)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryEventHandler.java

@@ -23,6 +23,7 @@ import java.util.Collections;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.Iterator;
+import java.util.List;
 import java.util.Map;
 import java.util.Timer;
 import java.util.TimerTask;
@@ -63,6 +64,7 @@ import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEntity;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEvent;
+import org.apache.hadoop.yarn.api.records.timeline.TimelinePutResponse;
 import org.apache.hadoop.yarn.client.api.TimelineClient;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.EventHandler;
@@ -1012,7 +1014,21 @@ public class JobHistoryEventHandler extends AbstractService
     }
 
     try {
-      timelineClient.putEntities(tEntity);
+      TimelinePutResponse response = timelineClient.putEntities(tEntity);
+      List<TimelinePutResponse.TimelinePutError> errors = response.getErrors();
+      if (errors.size() == 0) {
+        if (LOG.isDebugEnabled()) {
+          LOG.debug("Timeline entities are successfully put in event " + event
+              .getEventType());
+        }
+      } else {
+        for (TimelinePutResponse.TimelinePutError error : errors) {
+          LOG.error(
+              "Error when publishing entity [" + error.getEntityType() + ","
+                  + error.getEntityId() + "], server side error code: "
+                  + error.getErrorCode());
+        }
+      }
     } catch (IOException ex) {
       LOG.error("Error putting entity " + tEntity.getEntityId() + " to Timeline"
       + "Server", ex);