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Posted to common-issues@hadoop.apache.org by "Tsuyoshi OZAWA (JIRA)" <ji...@apache.org> on 2014/09/01 04:48:20 UTC

[jira] [Updated] (HADOOP-9187) FileUtil.CopyMerge should handle compressed input and output

     [ https://issues.apache.org/jira/browse/HADOOP-9187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsuyoshi OZAWA updated HADOOP-9187:
-----------------------------------
    Attachment: HADOOP-9187.2.patch

Updated a patch to add javadocs and handle exceptions correctly.

> FileUtil.CopyMerge should handle compressed input and output
> ------------------------------------------------------------
>
>                 Key: HADOOP-9187
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9187
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.3.0
>            Reporter: Ranadip
>            Assignee: Tsuyoshi OZAWA
>         Attachments: HADOOP-9187.1.patch, HADOOP-9187.2.patch
>
>
> This method, if run on compressed input, results in corrupt output since it just does a byte-by-byte concatenation disregarding compression codecs. It should automatically detect compression codecs from input files and handle them intelligently. 
> Additionally, there should be an option to create a compressed output file so that the output can be efficiently stored and sent out to customers (over the network outside the cluster).



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