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Posted to common-dev@hadoop.apache.org by "Hairong Kuang (JIRA)" <ji...@apache.org> on 2010/02/16 21:07:27 UTC

[jira] Created: (HADOOP-6569) FsShell#cat should avoid calling unecessary getFileStatus before opening a file to read

FsShell#cat should avoid calling unecessary getFileStatus before opening a file to read
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                 Key: HADOOP-6569
                 URL: https://issues.apache.org/jira/browse/HADOOP-6569
             Project: Hadoop Common
          Issue Type: Improvement
          Components: fs
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.22.0


Since FileSystem#open throws a FileNotFoundException when the file to be read does not exist, there is no need to check if the file is a directory or not before open. In case of HDFS, this could reduce one getFileInfo RPC to NameNode.

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