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https://issues.apache.org/jira/browse/HDFS-17595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17889909#comment-17889909
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ASF GitHub Bot commented on HDFS-17595:
---------------------------------------
Hexiaoqiao commented on code in PR #6983:
URL: https://github.com/apache/hadoop/pull/6983#discussion_r1802261298
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/AsyncErasureCoding.java:
##########
@@ -0,0 +1,181 @@
+/**
+ * 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.router;
+
+import org.apache.hadoop.hdfs.protocol.AddErasureCodingPolicyResponse;
+import org.apache.hadoop.hdfs.protocol.ECBlockGroupStats;
+import org.apache.hadoop.hdfs.protocol.ECTopologyVerifierResult;
+import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy;
+import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo;
+import
org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
+import
org.apache.hadoop.hdfs.server.federation.resolver.FederationNamespaceInfo;
+import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation;
+import org.apache.hadoop.hdfs.server.federation.router.async.ApplyFunction;
+import org.apache.hadoop.hdfs.server.namenode.NameNode;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static
org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.merge;
+import static
org.apache.hadoop.hdfs.server.federation.router.async.AsyncUtil.asyncApply;
+import static
org.apache.hadoop.hdfs.server.federation.router.async.AsyncUtil.asyncReturn;
+
+public class AsyncErasureCoding extends ErasureCoding {
Review Comment:
Got it. Thanks.
> [ARR] ErasureCoding supports asynchronous rpc.
> ----------------------------------------------
>
> Key: HDFS-17595
> URL: https://issues.apache.org/jira/browse/HDFS-17595
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
> Reporter: Jian Zhang
> Assignee: farmmamba
> Priority: Major
> Labels: pull-request-available
>
> *Describe*
> The main new addition is AsyncErasureCoding, which extends ErasureCoding so
> that supports asynchronous rpc.
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