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Jing Zhao commented on HDFS-7878: --------------------------------- Instead of defining a new DFSFileStatus class, can we define a new {{getFileId}} API inside of DistributedFileSystem and use HdfsFileStatus there? > API - expose an 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: Sergey Shelukhin > Attachments: 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)