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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2015/02/01 18:43:34 UTC

[jira] [Created] (HADOOP-11531) NativeAzureFsInputStream doesn't report error on seek+read past EOF

Steve Loughran created HADOOP-11531:
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             Summary: NativeAzureFsInputStream doesn't report error on seek+read past EOF
                 Key: HADOOP-11531
                 URL: https://issues.apache.org/jira/browse/HADOOP-11531
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 2.6.0
            Reporter: Steve Loughran
            Priority: Minor


This is based on looking at the code, needs a test to verify.

If you look at {{NativeAzureFsInputStream.skip(pos)}}, the code opens the input source, then sets its position to be {{pos = in.skip(pos)}}. This will be the position requested, or the length of the file: whichever is less.

A read() will then return -1 —its the end of the file. 

All the other filesystems behave differently in throwing an EOF if you seek past the length of the file, or, POSIX-style, raising it on the read after a seek past the EOF.



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