nyl3532016 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_r395981938
##########
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:
yes, you are right
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