[jira] Updated: (HIVE-24) support for reading binary data from flat files

["Pete Wyckoff (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-24?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pete Wyckoff updated HIVE-24:
-----------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 0.20.0)
           Status: Resolved  (was: Patch Available)

yes, already committed.


> support for reading binary data from flat files
> -----------------------------------------------
>
>                 Key: HIVE-24
>                 URL: https://issues.apache.org/jira/browse/HIVE-24
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Joydeep Sen Sarma
>         Attachments: FlatFileReader.java, HADOOP-4065.0.txt, HADOOP-4065.1.txt, HADOOP-4065.1.txt, HADOOP-4065.2.txt, ThriftFlatFile.java
>
>
> like textinputformat - looking for a concrete implementation to read binary records from a flat file (that may be compressed).
> it's assumed that hadoop can't split such a file. so the inputformat can set splittable to false.
> tricky aspects are:
> - how to know what class the file contains (has to be in a configuration somewhere).
> - how to determine EOF (would be nice if hadoop can determine EOF and not have the deserializer throw an exception  (which is hard to distinguish from a exception due to corruptions?)). this is easy for non-compressed streams - for compressed streams - DecompressorStream has a useful looking getAvailable() call - except the class is marked package private.

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