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https://issues.apache.org/jira/browse/HADOOP-13327?focusedWorklogId=542372&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-542372
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ASF GitHub Bot logged work on HADOOP-13327:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 26/Jan/21 19:46
            Start Date: 26/Jan/21 19:46
    Worklog Time Spent: 10m 
      Work Description: steveloughran commented on pull request #2587:
URL: https://github.com/apache/hadoop/pull/2587#issuecomment-767784703


   > Steve had mentioned to me that he was thinking of HBase and us being able 
to more safely put WALs onto file:// with these changes (not having to just 
disable the checks with LocalFileSystem).
   
   you are still going to need some robust storage, RAID-1+ or similar, but we 
are getting sync all the way through, and you can query the streams to make 
sure they say they support it -including local fs. 


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 542372)
    Time Spent: 7h 20m  (was: 7h 10m)

> Add OutputStream + Syncable to the Filesystem Specification
> -----------------------------------------------------------
>
>                 Key: HADOOP-13327
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13327
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HADOOP-13327-002.patch, HADOOP-13327-003.patch, 
> HADOOP-13327-branch-2-001.patch
>
>          Time Spent: 7h 20m
>  Remaining Estimate: 0h
>
> Write down what a Filesystem output stream should do. While core the API is 
> defined in Java, that doesn't say what's expected about visibility, 
> durability, etc —and Hadoop Syncable interface is entirely ours to define.



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