HADOOP-3645. MetricsTimeVaryingRate returns wrong value for metric_avg_time. Contributed by Lohit Vijayarenu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/trunk@672053 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -724,6 +724,9 @@ Release 0.17.1 - Unreleased
 
     HADOOP-3571. Fix bug in block removal used in lease recovery. (shv)
 
+    HADOOP-3645. MetricsTimeVaryingRate returns wrong value for
+    metric_avg_time. (Lohit Vijayarenu via hairong)
+
 Release 0.17.0 - 2008-05-18
 
   INCOMPATIBLE CHANGES

src/core/org/apache/hadoop/metrics/util/MetricsTimeVaryingRate.java

@@ -134,7 +134,7 @@ public class MetricsTimeVaryingRate {
     intervalHeartBeat();
     try {
       mr.incrMetric(name + "_num_ops", getPreviousIntervalNumOps());
-      mr.incrMetric(name + "_avg_time", getPreviousIntervalNumOps());
+      mr.incrMetric(name + "_avg_time", getPreviousIntervalAverageTime());
     } catch (Exception e) {
       LOG.info("pushMetric failed for " + name + "\n" +
           StringUtils.stringifyException(e));