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https://issues.apache.org/jira/browse/HDFS-7878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16227128#comment-16227128
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Hudson commented on HDFS-7878:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13168 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13168/])
HDFS-7878. API - expose a unique file identifier. (cdouglas: rev
d015e0bbd5416943cb4875274e67b7077c00e54b)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUtil.java
* (edit)
hadoop-common-project/hadoop-common/src/site/markdown/filesystem/filesystem.md
* (add)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/RawPathHandle.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/Options.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractOpenTest.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/ContractOptions.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/ContractTestUtils.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/HdfsConstants.java
* (add)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/HdfsPathHandle.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/HarFileSystem.java
* (add)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/PathHandle.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelperClient.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/resources/contract/hdfs.xml
* (edit) hadoop-hdfs-project/hadoop-hdfs-client/src/main/proto/hdfs.proto
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusSerialization.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
> API - expose a unique file identifier
> -------------------------------------
>
> Key: HDFS-7878
> URL: https://issues.apache.org/jira/browse/HDFS-7878
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sergey Shelukhin
> Assignee: Chris Douglas
> Labels: BB2015-05-TBR
> Fix For: 3.0.0
>
> Attachments: HDFS-7878.01.patch, HDFS-7878.02.patch,
> HDFS-7878.03.patch, HDFS-7878.04.patch, HDFS-7878.05.patch,
> HDFS-7878.06.patch, HDFS-7878.07.patch, HDFS-7878.08.patch,
> HDFS-7878.09.patch, HDFS-7878.10.patch, HDFS-7878.11.patch,
> HDFS-7878.12.patch, HDFS-7878.13.patch, HDFS-7878.14.patch,
> HDFS-7878.15.patch, HDFS-7878.16.patch, HDFS-7878.17.patch,
> HDFS-7878.18.patch, HDFS-7878.19.patch, HDFS-7878.20.patch,
> HDFS-7878.21.patch, HDFS-7878.patch
>
>
> See HDFS-487.
> Even though that is resolved as duplicate, the ID is actually not exposed by
> the JIRA it supposedly duplicates.
> INode ID for the file should be easy to expose; alternatively ID could be
> derived from block IDs, to account for appends...
> This is useful e.g. for cache key by file, to make sure cache stays correct
> when file is overwritten.
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