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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/12/05 17:44:00 UTC

[jira] [Commented] (ARROW-2919) [C++] Improve error message when listing empty HDFS file

    [ https://issues.apache.org/jira/browse/ARROW-2919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16710398#comment-16710398 ] 

Wes McKinney commented on ARROW-2919:
-------------------------------------

Working on the libhdfs bindings can be a cumbersome due to long iteration cycles with the Dockerfile. In the past I have used the Apache Impala development environment to run a local mini-HDFS cluster on my host; it might be useful to write some instructions on the wiki about a minimal setup to run HDFS either in a Docker container or in normal user-space

https://cwiki.apache.org//confluence/display/impala

> [C++] Improve error message when listing empty HDFS file
> --------------------------------------------------------
>
>                 Key: ARROW-2919
>                 URL: https://issues.apache.org/jira/browse/ARROW-2919
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 0.9.0
>            Reporter: Manu Zhang
>            Assignee: Wes McKinney
>            Priority: Minor
>              Labels: hdfs
>             Fix For: 0.12.0
>
>
> Currently, listing empty HDFS file returns "list directory failed" which doesn't help much for users. An improvement would be like "list $file_path failed: No such or file directory", the error message that HDFS command "hadoop fs -ls" returns on empty file.



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