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HBASE-17198 Remove redundant FN updates to merged region 

Signed-off-by: Francis Liu <toffer@apache.org>
This commit is contained in:
Thiruvel Thirumoolan 2016-12-08 19:21:58 -08:00 committed by Francis Liu
parent 680289d67d
commit bd7c9581f2
1 changed files with 1 additions and 14 deletions
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15
hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
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@ -2684,20 +2684,7 @@ public class AssignmentManager {
regionOnline(hri, serverName, 1);
try {
if (this.shouldAssignRegionsWithFavoredNodes) {
processFavoredNodesForMerge(hri, a, b);
/*
* This can be removed once HBASE-16119 (Procedure v2 Merge) is implemented and AM force
* assigns the merged region on the same region server. FavoredNodes for the region would
* be passed along with OpenRegionRequest and hence the following would become redundant.
*/
List<ServerName> favoredNodes = server.getFavoredNodesManager().getFavoredNodes(hri);
if (favoredNodes != null) {
Map<HRegionInfo, List<ServerName>> regionFNMap = new HashMap<>(1);
regionFNMap.put(hri, favoredNodes);
server.getServerManager().sendFavoredNodes(serverName, regionFNMap);
}
}
processFavoredNodesForMerge(hri, a, b);
} catch (IOException e) {
LOG.error("Error while processing favored nodes after merge.", e);
return StringUtils.stringifyException(e);