[jira] Updated: (HDFS-265) Revisit append

["Hairong Kuang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hairong Kuang updated HDFS-265:
-------------------------------

    Attachment: appendDesign3.pdf

Updated the design document to give credits to Konstantin, Nicholas, Sanjay, and Rob from Yahoo! HDFS team who contributed to the append design. Also many thanks to Ben Reed from Yahoo research for many hallway & lunch discussions, and Dhruba from Facebook for many trips to Yahoo! for append discussions and design reviews.

> Revisit append
> --------------
>
>                 Key: HDFS-265
>                 URL: https://issues.apache.org/jira/browse/HDFS-265
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 0.21.0
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.21.0
>
>         Attachments: a.sh, appendDesign.pdf, appendDesign.pdf, appendDesign1.pdf, appendDesign2.pdf, appendDesign3.pdf, AppendSpec.pdf, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, AppendTestPlan.html, TestPlanAppend.html
>
>
> HADOOP-1700 and related issues have put a lot of efforts to provide the first implementation of append. However, append is such a complex feature. It turns out that there are issues that were initially seemed trivial but needs a careful design. This jira revisits append, aiming for a design and implementation supporting a semantics that are acceptable to its users.

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