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https://issues.apache.org/jira/browse/HDFS-265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762302#action_12762302
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Konstantin Shvachko commented on HDFS-265:
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I quick status update:
The append branch has been merged with hdfs-0.21 and the trunk, thanks to
Hairong, she did it when everybody was out of town. The mainstream
functionality has been tested through a comprehensive set of tests including
fault injection tests, written by Konstantin Boudnik and Nicholas. Myself and
Nicholas tried the append branch on our pet clusters before the merge.
Looking ahead, this issue will be closed when all sub-tasks listed here are
completed, most of which are more tests, and the append functionality is turned
on by default. Please create new (not sub-tasks) jira's linked to this one for
append related issues.
> Revisit append
> --------------
>
> Key: HDFS-265
> URL: https://issues.apache.org/jira/browse/HDFS-265
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: Append Branch
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: Append Branch
>
> Attachments: a.sh, appendDesign.pdf, appendDesign.pdf,
> appendDesign1.pdf, appendDesign2.pdf, AppendSpec.pdf, 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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