HDFS-7365. Remove hdfs.server.blockmanagement.MutableBlockCollection. Contributed by Li Lu.

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -349,6 +349,9 @@ Release 2.7.0 - UNRELEASED
 
     HDFS-7336. Unused member DFSInputStream.buffersize. (Milan Desai via shv)
 
+    HDFS-7365. Remove hdfs.server.blockmanagement.MutableBlockCollection.
+    (Li Lu via wheat9)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/MutableBlockCollection.java

@@ -1,38 +0,0 @@
-/**
- * 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.blockmanagement;
-
-import java.io.IOException;
-
-/** 
- * This interface is used by the block manager to expose a
- * few characteristics of a collection of Block/BlockUnderConstruction.
- */
-public interface MutableBlockCollection extends BlockCollection {
-  /**
-   * Set the block at the given index.
-   */
-  public void setBlock(int index, BlockInfo blk);
-
-  /**
-   * Convert the last block of the collection to an under-construction block
-   * and set the locations.
-   */
-  public BlockInfoUnderConstruction setLastBlock(BlockInfo lastBlock,
-      DatanodeStorageInfo[] storages) throws IOException;
-}