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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HDFS-14716) Pass CreateFile Flags To Subclasses of FileSystem
Date Fri, 09 Aug 2019 21:16:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16904191#comment-16904191
] 

Íñigo Goiri commented on HDFS-14716:
------------------------------------

Tweaking ClientProtocol is always tricky because of backwards compatibility.
You would need to keep the old way and probably adding a new one, but that's also tricky.

> Pass CreateFile Flags To Subclasses of FileSystem
> -------------------------------------------------
>
>                 Key: HDFS-14716
>                 URL: https://issues.apache.org/jira/browse/HDFS-14716
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: David Mollitor
>            Priority: Major
>
> I need a way to pass [HDFS-13448] {{NO_LOCAL_WRITE}} to the {{DistributedFileSystem}}
class.  The {{create}} method should pass all of the {{CreateFile}} flags to the underlying
implementation.  The 'overwrite' flag should be removed and let implementation read this directive
as a {{CreateFile}} flag.
> {code:java}
>   public abstract FSDataOutputStream create(Path f,
>       FsPermission permission,
>       boolean overwrite,
>       int bufferSize,
>       short replication,
>       long blockSize,
>       Progressable progress) throws IOException;
> {code}



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