Removed TabletStatistics.getSplitCreationTime SPI method

core/src/main/java/org/apache/accumulo/core/manager/balancer/TabletStatisticsImpl.java

@@ -45,12 +45,6 @@ public long getNumEntries() {
     return thriftStats.getNumEntries();
   }
 
-  @Override
-  public long getSplitCreationTime() {
-    // ELASTICITY_TODO look into what needs to be done to remove this from SPI
-    return 0;
-  }
-
   @Override
   public double getIngestRate() {
     return thriftStats.getIngestRate();

core/src/main/java/org/apache/accumulo/core/spi/balancer/SimpleLoadBalancer.java

@@ -265,11 +265,11 @@ List<TabletMigration> move(ServerCounts tooMuch, ServerCounts tooLittle, int cou
         log.error("Unable to select a tablet to move", ex);
         return result;
       }
-      TabletId tabletId = selectTablet(onlineTabletsForTable);
-      onlineTabletsForTable.remove(tabletId);
-      if (tabletId == null) {
+      if (onlineTabletsForTable.isEmpty()) {
         return result;
       }
+      TabletId tabletId = onlineTabletsForTable.keySet().iterator().next();
+      onlineTabletsForTable.remove(tabletId);
       tooMuchMap.put(table, tooMuchMap.get(table) - 1);
       /*
        * If a table grows from 1 tablet then tooLittleMap.get(table) can return a null, since there
@@ -324,21 +324,6 @@ static Map<TableId,Integer> tabletCountsPerTable(TServerStatus status) {
     return result;
   }
 
-  static TabletId selectTablet(Map<TabletId,TabletStatistics> extents) {
-    if (extents.isEmpty()) {
-      return null;
-    }
-    TabletId mostRecentlySplit = null;
-    long splitTime = 0;
-    for (Entry<TabletId,TabletStatistics> entry : extents.entrySet()) {
-      if (entry.getValue().getSplitCreationTime() >= splitTime) {
-        splitTime = entry.getValue().getSplitCreationTime();
-        mostRecentlySplit = entry.getKey();
-      }
-    }
-    return mostRecentlySplit;
-  }
-
   // define what it means for a tablet to be busy
   private static TableId busiest(Map<String,TableStatistics> tables) {
     TableId result = null;

core/src/main/java/org/apache/accumulo/core/spi/balancer/data/TabletStatistics.java

@@ -28,8 +28,6 @@ public interface TabletStatistics extends Comparable<TabletStatistics> {
 
   long getNumEntries();
 
-  long getSplitCreationTime();
-
   double getIngestRate();
 
   double getQueryRate();