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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13823) s3a rename: fail if dest file exists
Date Thu, 24 Nov 2016 17:20:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Steve Loughran updated HADOOP-13823:
    Status: Patch Available  (was: Open)

rested: s3 ireland

> s3a rename: fail if dest file exists
> ------------------------------------
>                 Key: HADOOP-13823
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13823
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.7.3
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Critical
>         Attachments: HADOOP-13813-branch-2-001.patch, HADOOP-13823-branch-2-002.patch
> HIVE-15199 shows that s3a allows rename onto an existing file, which is something HDFS,
azure and s3n do not permit (though file:// does). This is breaking bits of Hive, is an inconsistency
with HDFS and a regression compared to s3n semantics.
> I propose: rejecting the rename on a file -> file rename if the destination exists
(easy) and changing the s3a.xml contract file to declare the behavior change; this is needed
for {{AbstractContractRenameTest.testRenameFileOverExistingFile}} to handle the changed semantics.

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