HADOOP-12771. Fix typo in JvmPauseMonitor#getNumGcWarnThreadholdExceeded. Contributed by Xiaobing Zhou.

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

@@ -1664,6 +1664,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-12735. core-default.xml misspells
     hadoop.workaround.non.threadsafe.getpwuid (Ray Chiang via cmccabe)
 
+    HADOOP-12771. Fix typo in JvmPauseMonitor#getNumGcWarnThreadholdExceeded.
+    (Xiaobing Zhou via xyao)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/source/JvmMetrics.java

@@ -140,7 +140,7 @@ public class JvmMetrics implements MetricsSource {
     
     if (pauseMonitor != null) {
       rb.addCounter(GcNumWarnThresholdExceeded,
-          pauseMonitor.getNumGcWarnThreadholdExceeded());
+          pauseMonitor.getNumGcWarnThresholdExceeded());
       rb.addCounter(GcNumInfoThresholdExceeded,
           pauseMonitor.getNumGcInfoThresholdExceeded());
       rb.addCounter(GcTotalExtraSleepTime,

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/JvmPauseMonitor.java

@@ -106,7 +106,7 @@ public class JvmPauseMonitor extends AbstractService {
     return monitorThread != null;
   }
 
-  public long getNumGcWarnThreadholdExceeded() {
+  public long getNumGcWarnThresholdExceeded() {
     return numGcWarnThresholdExceeded;
   }