[jira] [Commented] (HDFS-6531) Create a native api to delete file, like the renameTo method in NativeIO, for better error reporting

["Chris Nauroth (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-6531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14037732#comment-14037732 ] 

Chris Nauroth commented on HDFS-6531:
-------------------------------------

Linking to HADOOP-9590, which tracks our use cases for calling the new file APIs introduced in JDK7.  With JDK7, we could potentially use {{Files#delete}}, which throws an exception with details if the delete fails.  This would reduce our native code footprint.

http://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html#delete(java.nio.file.Path)

> Create a native api to delete file, like the renameTo method in NativeIO, for better error reporting
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6531
>                 URL: https://issues.apache.org/jira/browse/HDFS-6531
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>
> File.delete() returns boolean to indicate success or failure. 
> As a follow-up of HDFS-6499, filing this jira to provide a native API to delete file, like the renameTo method in NativeIO. So caller can tell better what's the reason of failure.
> And fix FileJournalManager etc places for better error reporting.
> Thanks [~atm] for reviewing the fix of HDFS-6499 and pointing out this issue.



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