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ASF GitHub Bot commented on HDFS-17534: --------------------------------------- yuanboliu commented on code in PR #6861: URL: https://github.com/apache/hadoop/pull/6861#discussion_r1634081994 ########## hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/LeaderFollowerResolver.java: ########## @@ -0,0 +1,42 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.resolver.order; + +import org.apache.hadoop.hdfs.server.federation.resolver.PathLocation; +import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Set; + +public class LeaderFollowerResolver implements OrderedResolver { Review Comment: Thanks, fixed it > RBF: Support leader follower mode for multiple subclusters > ---------------------------------------------------------- > > Key: HDFS-17534 > URL: https://issues.apache.org/jira/browse/HDFS-17534 > Project: Hadoop HDFS > Issue Type: Improvement > Components: rbf > Reporter: Yuanbo Liu > Assignee: Yuanbo Liu > Priority: Major > Labels: pull-request-available > > Currently there are five modes in multiple subclusters like > HASH, LOCAL, RANDOM, HASH_ALL,SPACE; > Proposal a new mode called leader/follower mode. routers try to write to > leader subcluster as many as possible. When routers read data, put leader > subcluster into first rank. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org