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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8801) Convert BlockInfoUnderConstruction as a feature
Date Thu, 27 Aug 2015 01:40:46 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Haohui Mai updated HDFS-8801:
-----------------------------
    Issue Type: Sub-task  (was: Improvement)
        Parent: HDFS-8966

> Convert BlockInfoUnderConstruction as a feature
> -----------------------------------------------
>
>                 Key: HDFS-8801
>                 URL: https://issues.apache.org/jira/browse/HDFS-8801
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Zhe Zhang
>            Assignee: Jing Zhao
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8801.000.patch
>
>
> Per discussion under HDFS-8499, with the erasure coding feature, there will be 4 types
of {{BlockInfo}} forming a multi-inheritance: {{complete+contiguous}}, {{complete+striping}},
{{UC+contiguous}}, {{UC+striped}}. We had the same challenge with {{INodeFile}} and the solution
was building feature classes like {{FileUnderConstructionFeature}}. This JIRA aims to implement
the same idea on {{BlockInfo}}. 



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