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https://issues.apache.org/jira/browse/HDFS-7498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241163#comment-14241163
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Hudson commented on HDFS-7498:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #1968 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1968/])
HDFS-7498. Simplify the logic in INodesInPath. Contributed by Jing Zhao.
(jing9: rev 5776a41da08af653206bb94d7c76c9c4dcce059a)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodesInPath.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirRenameOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirSnapshotOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirStatAndListingOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirMkdirOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirConcatOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSPermissionChecker.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/Path.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestSnapshotPathINodes.java
> Simplify the logic in INodesInPath
> ----------------------------------
>
> Key: HDFS-7498
> URL: https://issues.apache.org/jira/browse/HDFS-7498
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Fix For: 2.7.0
>
> Attachments: HDFS-7498.000.patch
>
>
> Currently we have relatively complicated logic in INodesInPath:
> 1) It can contain null elements in its INode array, and in
> {{mkdirRecursively}} these null INodes are replaced with new directories.
> 2) Operations like rename may also replace the inode in its INode array
> 3) {{getINodes}} requires trimming inodes array if the INodesInPath is
> derived from a dot-snapshot path
> 4) A lot of methods directly use/manipulate its INode array
> We aim to simplify the logic of INodesInPath in this jira. Specifically, we
> can
> make INodesInPath an immutable data structure and move the inode trimming
> logic to path resolving.
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