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From "Dushyanth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12535) Run FileSystem contract tests with hadoop-azure.
Date Wed, 24 Feb 2016 03:35:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15160130#comment-15160130
] 

Dushyanth commented on HADOOP-12535:
------------------------------------

[~madhuch-ms]  This is a known deviation for append support in WASB. Append expects the application
to enforce single modifier semantics for a file. Unlike HDFS where we have lease or lock on
the path, WASB does not have the same semantics and we expect the applications to enforce
that the file is not modified (rename or delete) during append. 

I think we can skip this test for Append at this time and re-enable it when we bring append
support to have the same semantics as HDFS.

cc [~cnauroth] 

> Run FileSystem contract tests with hadoop-azure.
> ------------------------------------------------
>
>                 Key: HADOOP-12535
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12535
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: azure, test
>            Reporter: Chris Nauroth
>            Assignee: madhumita chakraborty
>         Attachments: HADOOP-12535.001.patch, HADOOP-12535.002.patch, HADOOP-12535.003.patch
>
>
> This issue proposes to implement the Hadoop {{FileSystem}} contract tests for hadoop-azure/WASB.
 The contract tests define the expected semantics of the {{FileSystem}}, so running these
for hadoop-azure is likely to catch potential problems and improve overall quality.



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