[jira] [Work started] (HADOOP-9371) Define Semantics of FileSystem and FileContext more rigorously

["Steve Loughran (JIRA)" <ji...@apache.org>]

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

Work on HADOOP-9371 started by Steve Loughran.

> Define Semantics of FileSystem and FileContext 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
>         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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