[GitHub] [hbase] binlijin commented on a change in pull request #1279: HBASE-23949 refactor loadBalancer implements for rsgroup balance by t…

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binlijin commented on a change in pull request #1279: HBASE-23949 refactor loadBalancer implements for rsgroup balance by t…
URL: https://github.com/apache/hbase/pull/1279#discussion_r395399054
 
 

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 File path: hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
 ##########
 @@ -1639,6 +1637,44 @@ private void roundRobinAssignment(Cluster cluster, List<RegionInfo> regions,
     }
   }
 
+  private Map<ServerName, List<RegionInfo>> toEnsumbleTableLoad(
+      Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable) {
+    Map<ServerName, List<RegionInfo>> returnMap = new TreeMap<>();
+    for (Map<ServerName, List<RegionInfo>> serverNameListMap : LoadOfAllTable.values()) {
+      serverNameListMap.forEach((serverName, regionInfoList) -> {
+        List<RegionInfo> regionInfos =
+            returnMap.computeIfAbsent(serverName, k -> new ArrayList<>());
+        regionInfos.addAll(regionInfoList);
+      });
+    }
+    return returnMap;
+  }
+
+  @Override
+  public abstract List<RegionPlan> balanceTable(TableName tableName,
+      Map<ServerName, List<RegionInfo>> loadOfOneTable);
+
+
+  @Override
+  public List<RegionPlan>
+      balanceCluster(Map<TableName, Map<ServerName, List<RegionInfo>>> loadOfAllTable) {
+    if (isByTable) {
+      List<RegionPlan> result = new ArrayList<>();
+      loadOfAllTable.forEach((tableName, loadOfOneTable) -> {
+        LOG.debug("Start Generate Balance plan for table: " + tableName);
+        List<RegionPlan> partialPlans = balanceTable(tableName, loadOfOneTable);
+        if (partialPlans != null) {
+          result.addAll(partialPlans);
+        }
+      });
+      return result;
+    } else {
+      LOG.debug("Start Generate Balance plan for table: " + HConstants.ENSEMBLE_TABLE_NAME);
 
 Review comment:
   There is no Table ENSEMBLE_TABLE_NAME actually, need to change this log?

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