Patch for /metrics REST API

consistent_name_for_rest_api.diff

diff --git a/src/java/org/apache/hadoop/mapred/JobTrackerMetricsInst.java b/src/java/org/apache/hadoop/mapred/JobTrackerMetricsInst.java
index 74885a1..a041f28 100644
--- a/src/java/org/apache/hadoop/mapred/JobTrackerMetricsInst.java
+++ b/src/java/org/apache/hadoop/mapred/JobTrackerMetricsInst.java
@@ -121,8 +121,8 @@ class JobTrackerMetricsInst extends JobTrackerInstrumentation implements Updater
       metricsRecord.incrMetric("jobs_preparing", numJobsPreparing);
       metricsRecord.incrMetric("jobs_running", numJobsRunning);
       
-      metricsRecord.incrMetric("running_maps", numRunningMaps);
-      metricsRecord.incrMetric("running_reduces", numRunningReduces);
+      metricsRecord.incrMetric("maps_running", numRunningMaps);
+      metricsRecord.incrMetric("reduces_running", numRunningReduces);
       
       metricsRecord.incrMetric("maps_killed", numMapTasksKilled);
       metricsRecord.incrMetric("reduces_killed", numReduceTasksKilled);