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Posted to common-issues@hadoop.apache.org by "Thomas Marquardt (JIRA)" <ji...@apache.org> on 2018/01/03 23:13:00 UTC

[jira] [Commented] (HADOOP-15086) NativeAzureFileSystem file rename is not atomic

    [ https://issues.apache.org/jira/browse/HADOOP-15086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16310454#comment-16310454 ] 

Thomas Marquardt commented on HADOOP-15086:
-------------------------------------------

I will open a new JIRA and begin the backport to branch-2.

> NativeAzureFileSystem file rename is not atomic
> -----------------------------------------------
>
>                 Key: HADOOP-15086
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15086
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/azure
>            Reporter: Shixiong Zhu
>            Assignee: Thomas Marquardt
>             Fix For: 3.1.0, 3.0.1
>
>         Attachments: HADOOP-15086-001.patch, HADOOP-15086-002.patch, RenameReproducer.java
>
>
> When multiple threads rename files to the same target path, more than 1 threads can succeed. It's because check and copy file in `rename` is not atomic.
> I would expect it's atomic just like HDFS.



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