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https://issues.apache.org/jira/browse/HDFS-7878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16227113#comment-16227113
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Chris Douglas edited comment on HDFS-7878 at 10/31/17 5:02 PM:
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I committed this.
Thanks everyone for the reviews and feedback, particularly
[~ste...@apache.org], [~mackrorysd], [~elgoiri], [~anu], [~andrew.wang],
[~eddyxu], and [~jingzhao].
was (Author: chris.douglas):
I committed this.
Thanks everyone for the reviews and feedback, particularly
[~ste...@apache.org], [~mackrorysd], [~anu], [~andrew.wang], [~eddyxu], and
[~jingzhao].
> 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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