fix

Author: liuxiaocs7

hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java

@@ -1664,7 +1664,6 @@ public static class RegionInTransitionStat {
     private long oldestRITTime = 0;
     private int totalRITsTwiceThreshold = 0;
     private int totalRITs = 0;
-    private final List<Long> ritDuration = new ArrayList<>();
 
     public RegionInTransitionStat(final Configuration conf) {
       this.ritThreshold =
@@ -1687,10 +1686,6 @@ public long getOldestRITTime() {
       return oldestRITTime;
     }
 
-    public List<Long> getRitDuration() {
-      return ritDuration;
-    }
-
     public int getTotalRITsOverThreshold() {
       Map<String, RegionState> m = this.ritsOverThreshold;
       return m != null ? m.size() : 0;
@@ -1749,7 +1744,6 @@ private void update(final Collection<RegionState> regions, final long currentTim
           continue;
         }
         final long ritTime = currentTime - ritStartedMs;
-        ritDuration.add(ritTime);
         if (ritTime > ritThreshold) {
           if (ritsOverThreshold == null) {
             ritsOverThreshold = new HashMap<String, RegionState>();
@@ -1768,7 +1762,6 @@ private void updateRegionsInTransitionMetrics(final RegionInTransitionStat ritSt
     metrics.updateRITOldestAge(ritStat.getOldestRITTime());
     metrics.updateRITCount(ritStat.getTotalRITs());
     metrics.updateRITCountOverThreshold(ritStat.getTotalRITsOverThreshold());
-    ritStat.getRitDuration().forEach(metrics::updateRitDuration);
   }
 
   private void updateDeadServerRegionMetrics(int deadRegions, int unknownRegions) {