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Posted to issues@beam.apache.org by "Chamikara Madhusanka Jayalath (Jira)" <ji...@apache.org> on 2019/11/19 22:16:00 UTC

[jira] [Commented] (BEAM-8399) Python HDFS implementation should support filenames of the format "hdfs://namenodehost/parent/child"

    [ https://issues.apache.org/jira/browse/BEAM-8399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16977879#comment-16977879 ] 

Chamikara Madhusanka Jayalath commented on BEAM-8399:
-----------------------------------------------------

Udi, will you be able to look into this (assuming this to a be a relatively small fix) ?

> Python HDFS implementation should support filenames of the format "hdfs://namenodehost/parent/child"
> ----------------------------------------------------------------------------------------------------
>
>                 Key: BEAM-8399
>                 URL: https://issues.apache.org/jira/browse/BEAM-8399
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core
>            Reporter: Chamikara Madhusanka Jayalath
>            Priority: Major
>
> "hdfs://namenodehost/parent/child" and "/parent/child" seems to be the correct filename formats for HDFS based on [1] but we currently support format "hdfs://parent/child".
> To not break existing users, we have to either (1) somehow support both versions by default (based on [2] seems like HDFS does not allow colons in file path so this might be possible) (2) make  "hdfs://namenodehost/parent/child" optional for now and change it to default after few versions.
> We should also make sure that Beam Java and Python HDFS file-system implementations are consistent in this regard.
>  
> [1][https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/FileSystemShell.html]
> [2] https://issues.apache.org/jira/browse/HDFS-13
>  
> cc: [~udim]



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