HADOOP-12609. Fix intermittent failure of TestDecayRpcScheduler. (Contributed by Masatake Iwasaki)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -872,6 +872,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-12313. NPE in JvmPauseMonitor when calling stop() before start().
     (Gabor Liptak via wheat9)
 
+    HADOOP-12609. Fix intermittent failure of TestDecayRpcScheduler.
+    (Masatake Iwasaki via Arpit Agarwal)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/DecayRpcScheduler.java

@@ -151,7 +151,7 @@ public class DecayRpcScheduler implements RpcScheduler, DecayRpcSchedulerMXBean
     // Setup delay timer
     Timer timer = new Timer();
     DecayTask task = new DecayTask(this, timer);
-    timer.scheduleAtFixedRate(task, 0, this.decayPeriodMillis);
+    timer.scheduleAtFixedRate(task, decayPeriodMillis, decayPeriodMillis);
 
     MetricsProxy prox = MetricsProxy.getInstance(ns);
     prox.setDelegate(this);