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@@ -1,356 +0,0 @@
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-/**
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- * Licensed to the Apache Software Foundation (ASF) under one
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- * or more contributor license agreements. See the NOTICE file
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- * distributed with this work for additional information
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- * regarding copyright ownership. The ASF licenses this file
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- * to you under the Apache License, Version 2.0 (the
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- * "License"); you may not use this file except in compliance
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- * with the License. You may obtain a copy of the License at
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- *
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- * http://www.apache.org/licenses/LICENSE-2.0
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- *
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- * Unless required by applicable law or agreed to in writing, software
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- * distributed under the License is distributed on an "AS IS" BASIS,
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- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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- * See the License for the specific language governing permissions and
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- * limitations under the License.
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- */
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-
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-Branch-2802 Snapshot (Unreleased)
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-
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- HDFS-4076. Support snapshot of single files. (szetszwo)
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-
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- HDFS-4082. Add editlog opcodes for snapshot create and delete operations.
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- (suresh via szetszwo)
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-
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- HDFS-4086. Add editlog opcodes to allow and disallow snapshots on a
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- directory. (Brandon Li via suresh)
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-
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- HDFS-4083. Protocol changes for snapshots. (suresh)
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-
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- HDFS-4077. Add support for Snapshottable Directory. (szetszwo via suresh)
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-
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- HDFS-4087. Protocol changes for listSnapshots functionality.
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- (Brandon Li via suresh)
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-
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- HDFS-4079. Add SnapshotManager which maintains a list for all the
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- snapshottable directories and supports snapshot methods such as setting a
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- directory to snapshottable and creating a snapshot. (szetszwo)
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-
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- HDFS-4078. Handle replication in snapshots. (szetszwo)
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-
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- HDFS-4084. Provide CLI support to allow and disallow snapshot
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- on a directory. (Brondon Li via suresh)
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-
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- HDFS-4091. Add snapshot quota to limit the number of snapshots allowed.
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- (szetszwo)
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-
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- HDFS-4097. Provide CLI support for createSnapshot. (Brandon Li via suresh)
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-
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- HDFS-4092. Update file deletion logic for snapshot so that the current inode
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- is removed from the circular linked list; and if some blocks at the end of the
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- block list no longer belong to any other inode, collect them and update the
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- block list. (szetszwo)
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-
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- HDFS-4111. Support snapshot of subtrees. (szetszwo via suresh)
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-
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- HDFS-4119. Complete the allowSnapshot code and add a test for it. (szetszwo)
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-
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- HDFS-4133. Add testcases for testing basic snapshot functionalities.
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- (Jing Zhao via suresh)
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-
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- HDFS-4116. Add auditlog for some snapshot operations. (Jing Zhao via suresh)
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-
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- HDFS-4095. Add some snapshot related metrics. (Jing Zhao via suresh)
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-
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- HDFS-4141. Support directory diff - the difference between the current state
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- and a previous snapshot of an INodeDirectory. (szetszwo)
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-
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- HDFS-4146. Use getter and setter in INodeFileWithLink to access blocks and
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- initialize root directory as snapshottable. (szetszwo)
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-
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- HDFS-4149. Implement the disallowSnapshot(..) in FSNamesystem and add
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- resetSnapshottable(..) to SnapshotManager. (szetszwo)
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-
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- HDFS-4147. When there is a snapshot in a subtree, deletion of the subtree
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- should fail. (Jing Zhao via szetszwo)
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-
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- HDFS-4150. Update the inode in the block map when a snapshotted file or a
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- snapshot file is deleted. (Jing Zhao via szetszwo)
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-
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- HDFS-4159. Rename should fail when the destination directory is snapshottable
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- and has snapshots. (Jing Zhao via szetszwo)
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-
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- HDFS-4170. Add snapshot information to INodesInPath. (szetszwo)
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-
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- HDFS-4177. Add a snapshot parameter to INodeDirectory.getChildrenList() for
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- selecting particular snapshot children list views. (szetszwo)
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-
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- HDFS-4148. Disallow write/modify operations on files and directories in a
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- snapshot. (Brandon Li via suresh)
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-
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- HDFS-4188. Add Snapshot.ID_COMPARATOR for comparing IDs and fix a bug in
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- ReadOnlyList.Util.binarySearch(..). (szetszwo)
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-
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- HDFS-4187. Add tests for replication handling in snapshots. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4196. Support renaming of snapshots. (Jing Zhao via szetszwo)
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-
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- HDFS-4175. Additional snapshot tests for more complicated directory
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- structure and modifications. (Jing Zhao via suresh)
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-
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- HDFS-4293. Fix TestSnapshot failure. (Jing Zhao via suresh)
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-
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- HDFS-4317. Change INode and its subclasses to support HDFS-4103. (szetszwo)
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-
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- HDFS-4103. Support O(1) snapshot creation. (szetszwo)
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-
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- HDFS-4330. Support snapshots up to the snapshot limit. (szetszwo)
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-
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- HDFS-4357. Fix a bug that if an inode is replaced, further INode operations
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- should apply to the new inode. (Jing Zhao via szetszwo)
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-
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- HDFS-4230. Support listing of all the snapshottable directories. (Jing Zhao
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- via szetszwo)
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-
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- HDFS-4244. Support snapshot deletion. (Jing Zhao via szetszwo)
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-
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- HDFS-4245. Include snapshot related operations in TestOfflineEditsViewer.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4395. In INodeDirectorySnapshottable's constructor, the passed-in dir
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- could be an INodeDirectoryWithSnapshot. (Jing Zhao via szetszwo)
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-
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- HDFS-4397. Fix a bug in INodeDirectoryWithSnapshot.Diff.combinePostDiff(..)
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- that it may put the wrong node into the deleted list. (szetszwo)
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-
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- HDFS-4407. Change INodeDirectoryWithSnapshot.Diff.combinePostDiff(..) to
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- merge-sort like and keep the postDiff parameter unmodified. (szetszwo)
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-
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- HDFS-4098. Add FileWithSnapshot, INodeFileUnderConstructionWithSnapshot and
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- INodeFileUnderConstructionSnapshot for supporting append to snapshotted files.
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- (szetszwo)
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-
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- HDFS-4126. Add reading/writing snapshot information to FSImage.
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- (Jing Zhao via suresh)
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-
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- HDFS-4436. Change INode.recordModification(..) to return only the current
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- inode and remove the updateCircularList parameter from some methods in
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- INodeDirectoryWithSnapshot.Diff. (szetszwo)
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-
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- HDFS-4429. When the latest snapshot exists, INodeFileUnderConstruction should
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- be replaced with INodeFileWithSnapshot but not INodeFile. (Jing Zhao
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- via szetszwo)
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-
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- HDFS-4441. Move INodeDirectoryWithSnapshot.Diff and the related classes to a
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- package. (szetszwo)
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-
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- HDFS-4432. Support INodeFileUnderConstructionWithSnapshot in FSImage
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- saving/loading. (Jing Zhao via suresh)
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-
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- HDFS-4131. Add capability to namenode to get snapshot diff. (Jing Zhao via
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- suresh)
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-
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- HDFS-4447. Refactor INodeDirectoryWithSnapshot for supporting general INode
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- diff lists. (szetszwo)
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-
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- HDFS-4189. Renames the getMutableXxx methods to getXxx4Write and fix a bug
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- that some getExistingPathINodes calls should be getINodesInPath4Write.
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- (szetszwo)
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-
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- HDFS-4361. When listing snapshottable directories, only return those
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- where the user has permission to take snapshots. (Jing Zhao via szetszwo)
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-
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- HDFS-4464. Combine collectSubtreeBlocksAndClear with deleteDiffsForSnapshot
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- and rename it to destroySubtreeAndCollectBlocks. (szetszwo)
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-
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- HDFS-4414. Add support for getting snapshot diff from DistributedFileSystem.
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- (Jing Zhao via suresh)
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-
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- HDFS-4446. Support file snapshots with diff lists. (szetszwo)
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-
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- HDFS-4480. Eliminate the file snapshot circular linked list. (szetszwo)
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-
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- HDFS-4481. Change fsimage to support snapshot file diffs. (szetszwo)
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-
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- HDFS-4500. Refactor snapshot INode methods. (szetszwo)
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-
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- HDFS-4487. Fix snapshot diff report for HDFS-4446. (Jing Zhao via szetszwo)
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-
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- HDFS-4431. Support snapshot in OfflineImageViewer. (Jing Zhao via szetszwo)
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-
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- HDFS-4503. Update computeContentSummary(..), spaceConsumedInTree(..) and
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- diskspaceConsumed(..) in INode for snapshot. (szetszwo)
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-
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- HDFS-4499. Fix file/directory/snapshot deletion for file diff. (Jing Zhao
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- via szetszwo)
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-
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- HDFS-4524. Update SnapshotManager#snapshottables when loading fsimage.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4520. Support listing snapshots under a snapshottable directory using ls.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4514. Add CLI for supporting snapshot rename, diff report, and
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- snapshottable directory listing. (Jing Zhao via szetszwo)
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-
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- HDFS-4523. Fix INodeFile replacement, TestQuota and javac errors from trunk
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- merge. (szetszwo)
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-
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- HDFS-4507. Update quota verification for snapshots. (szetszwo)
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-
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- HDFS-4545. With snapshots, FSDirectory.unprotectedSetReplication(..) always
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- changes file replication but it may or may not changes block replication.
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- (szetszwo)
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-
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- HDFS-4557. Fix FSDirectory#delete when INode#cleanSubtree returns 0.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4579. Annotate snapshot tests. (Arpit Agarwal via suresh)
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-
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- HDFS-4574. Move Diff to the util package. (szetszwo)
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-
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- HDFS-4563. Update namespace/diskspace usage after deleting snapshots.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4144. Create test for all snapshot-related metrics.
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- (Jing Zhao via suresh)
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-
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- HDFS-4556. Add snapshotdiff and LsSnapshottableDir tools to hdfs script.
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- (Arpit Agarwal via szetszwo)
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-
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- HDFS-4534. Add INodeReference in order to support rename with snapshots.
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- (szetszwo)
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-
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- HDFS-4616. Update the FilesDeleted metric while deleting file/dir in the
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- current tree. (Jing Zhao via szetszwo)
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-
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- HDFS-4627. Fix FSImageFormat#Loader NPE and synchronization issues.
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- (Jing Zhao via suresh)
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-
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- HDFS-4612. Not to use INode.getParent() when generating snapshot diff report.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4636. Update quota usage when deleting files/dirs that were created
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- after taking the latest snapshot. (Jing Zhao via szetszwo)
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-
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- HDFS-4648. For snapshot deletion, when merging the diff from to-delete
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- snapshot to the prior snapshot, make sure files/directories created after
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- the prior snapshot get deleted. (Jing Zhao via szetszwo)
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-
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- HDFS-4637. INodeDirectory#replaceSelf4Quota may incorrectly convert a newly
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- created directory to an INodeDirectoryWithSnapshot. (Jing Zhao via szetszwo)
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-
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- HDFS-4611. Update FSImage for INodeReference. (szetszwo)
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-
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- HDFS-4647. Rename should call setLocalName after an inode is removed from
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- snapshots. (Arpit Agarwal via szetszwo)
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-
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- HDFS-4684. Use INode id for image serialization when writing INodeReference.
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- (szetszwo)
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-
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- HDFS-4675. Fix rename across snapshottable directories. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4692. Use timestamp as default snapshot names. (szetszwo)
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-
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- HDFS-4666. Define ".snapshot" as a reserved inode name so that users cannot
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- create a file/directory with ".snapshot" as the name. If ".snapshot" is used
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- in a previous version of HDFS, it must be renamed before upgrade; otherwise,
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- upgrade will fail. (szetszwo)
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-
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- HDFS-4700. Fix the undo section of rename with snapshots. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4529. Disallow concat when one of the src files is in some snapshot.
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- (szetszwo)
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-
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- HDFS-4550. Refactor INodeDirectory.INodesInPath to a standalone class.
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- (szetszwo)
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-
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- HDFS-4707. Add snapshot methods to FilterFileSystem and fix findbugs warnings.
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- (szetszwo)
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-
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- HDFS-4706. Do not replace root inode for disallowSnapshot. (szetszwo)
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-
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- HDFS-4717. Change the path parameter type of the snapshot methods in
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- HdfsAdmin from String to Path. (szetszwo)
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-
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- HDFS-4708. Add snapshot user documentation. (szetszwo)
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-
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- HDFS-4726. Fix test failures after merging the INodeId-INode mapping
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- from trunk. (Jing Zhao via szetszwo)
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-
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- HDFS-4727. Update inodeMap after deleting files/directories/snapshots.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4719. Remove AbstractINodeDiff.Factory and move its methods to
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- AbstractINodeDiffList. (Arpit Agarwal via szetszwo)
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-
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- HDFS-4735. DisallowSnapshot throws IllegalStateException for nested
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- snapshottable directories. (Jing Zhao via szetszwo)
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-
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- HDFS-4738. Changes AbstractINodeDiff to implement Comparable<Integer>, and
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- fix javadoc and other warnings. (szetszwo)
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-
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- HDFS-4686. Update quota computation for rename and INodeReference.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4729. Fix OfflineImageViewer and permission checking for snapshot
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- operations. (Jing Zhao via szetszwo)
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-
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- HDFS-4749. Use INodeId to identify the corresponding directory node in
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- FSImage saving/loading. (Jing Zhao via szetszwo)
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-
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- HDFS-4742. Fix appending to a renamed file with snapshot. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4755. Fix AccessControlException message and moves "implements
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- LinkedElement" from INode to INodeWithAdditionalFields. (szetszwo)
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-
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- HDFS-4650. Fix a bug in FSDirectory and add more unit tests for rename with
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- existence of snapshottable directories and snapshots. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4650. When passing two non-existing snapshot names to snapshotDiff, it
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- returns success if the names are the same. (Jing Zhao via szetszwo)
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-
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- HDFS-4767. If a directory is snapshottable, do not replace it when clearing
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- quota. (Jing Zhao via szetszwo)
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-
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- HDFS-4578. Restrict snapshot IDs to 24-bit wide. (Arpit Agarwal via
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- szetszwo)
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-
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- HDFS-4773. Fix bugs in quota usage computation and OfflineImageViewer.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4760. Update inodeMap after node replacement. (Jing Zhao via szetszwo)
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-
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- HDFS-4758. Disallow nested snapshottable directories and unwrap
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- RemoteException. (szetszwo)
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-
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- HDFS-4781. Fix a NullPointerException when listing .snapshot under
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- a non-existing directory. (szetszwo)
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-
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- HDFS-4791. Update and fix deletion of reference inode. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4798. Update computeContentSummary() for the reference nodes in
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- snapshots. (szetszwo)
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-
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- HDFS-4800. Fix INodeDirectoryWithSnapshot#cleanDeletedINode. (Jing Zhao via
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- szetszwo)
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-
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- HDFS-4801. lsSnapshottableDir throws IllegalArgumentException when root is
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- snapshottable. (Jing Zhao via szetszwo)
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-
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- HDFS-4802. Disallowing snapshot on / twice should throw SnapshotException
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- but not IllegalStateException. (Jing Zhao via szetszwo)
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-
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- HDFS-4806. In INodeDirectoryWithSnapshot, use isInLatestSnapshot() to
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- determine if an added/removed child should be recorded in the snapshot diff.
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- (Jing Zhao via szetszwo)
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-
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- HDFS-4809. When a QuotaExceededException is thrown during rename, the quota
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- usage should be subtracted back. (Jing Zhao via szetszwo)
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Tsz-wo Sze