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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-265) Revisit append
Date Thu, 30 Jul 2009 02:08:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736959#action_12736959
] 

Konstantin Boudnik commented on HDFS-265:
-----------------------------------------

Per my conversation with Konstantin it is a new exception to be introduced (the specs are
yet to be updated I believe, thus I'm a little bit ahead of the steamer here). This to be
thrown when a datanode is too busy and can't participate in the recovery process.

> Revisit append
> --------------
>
>                 Key: HDFS-265
>                 URL: https://issues.apache.org/jira/browse/HDFS-265
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>         Attachments: appendDesign.pdf, appendDesign.pdf, appendDesign1.pdf, AppendSpec.pdf,
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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