MAPREDUCE-6266. Job#getTrackingURL should consistently return a proper URL (rchiang via rkanter)

hadoop-mapreduce-project/CHANGES.txt

@@ -324,6 +324,9 @@ Release 2.8.0 - UNRELEASED
     MAPREDUCE-4844. Counters / AbstractCounters have constant references not
     declared final. (Brahma Reddy Battula via gera)
 
+    MAPREDUCE-6266. Job#getTrackingURL should consistently return a proper URL
+    (rchiang via rkanter)
+
 Release 2.7.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedJob.java

@@ -157,10 +157,10 @@ public class CompletedJob implements org.apache.hadoop.mapreduce.v2.app.job.Job
     String historyUrl = "N/A";
     try {
       historyUrl =
-          MRWebAppUtil.getApplicationWebURLOnJHSWithoutScheme(conf,
+          MRWebAppUtil.getApplicationWebURLOnJHSWithScheme(conf,
               jobId.getAppId());
     } catch (UnknownHostException e) {
-      //Ignore.
+        LOG.error("Problem determining local host: " + e.getMessage());
     }
     report.setTrackingUrl(historyUrl);
     report.setAMInfos(getAMInfos());