[jira] [Closed] (FLINK-2706) Add support for streaming RollingFileSink to truncate / append on UNIX file systems

["Aljoscha Krettek (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-2706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek closed FLINK-2706.
-----------------------------------
    Resolution: Won't Fix

This has been superseded by the work to make the {{BucketingSink}} our {{FileSystem}} abstraction: FLINK-5789

> Add support for streaming RollingFileSink to truncate / append on UNIX file systems
> -----------------------------------------------------------------------------------
>
>                 Key: FLINK-2706
>                 URL: https://issues.apache.org/jira/browse/FLINK-2706
>             Project: Flink
>          Issue Type: Improvement
>          Components: filesystem-connector, Streaming Connectors
>    Affects Versions: 0.10.0
>            Reporter: Stephan Ewen
>            Assignee: Aljoscha Krettek
>
> Efficient exactly-once behavior needs the filesystem to support appending and truncating files.
> Since the UNIX file system API allows to append files and truncate files, we can support perfect exactly-once behavior efficiently on all file systems that expose a UNIX / POSIX-style interface (local FS, NFS, MapR FS).
> Without this support, only Hadoop 2.7+ versions support proper exactly once behavior.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)