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https://issues.apache.org/jira/browse/HDFS-265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848466#action_12848466
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Todd Lipcon commented on HDFS-265:
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Is the concurrent tailer use case part of this feature? I opened HDFS-1060 with
some test cases that show it is not functional on trunk.
> 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, 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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