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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-9371) Define Semantics of FileSystem more rigorously
Date Thu, 03 Jul 2014 13:06:26 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-9371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran resolved HADOOP-9371.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 2.5.0

> Define Semantics of FileSystem more rigorously
> ----------------------------------------------
>
>                 Key: HADOOP-9371
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9371
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs
>    Affects Versions: 1.2.0, 3.0.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>             Fix For: 2.5.0
>
>         Attachments: HADOOP-9361.2.patch, HADOOP-9361.patch, HADOOP-9371-003.patch, HadoopFilesystemContract.pdf
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> The semantics of {{FileSystem}} and {{FileContext}} are not completely defined in terms
of 
> # core expectations of a filesystem
> # consistency requirements.
> # concurrency requirements.
> # minimum scale limits
> Furthermore, methods are not defined strictly enough in terms of their outcomes and failure
modes.
> The requirements and method semantics should be defined more strictly.



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