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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8909) Erasure coding: update BlockInfoContiguousUC and BlockInfoStripedUC to use BlockUnderConstructionFeature
Date Thu, 20 Aug 2015 22:44:48 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14705910#comment-14705910
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Zhe Zhang commented on HDFS-8909:
---------------------------------

Actually {{isStriped}} can be determined from block ID. So maybe we can remove the {{isStriped}}
field from the signatures of the feature class's constructor and {{setExpectedLocations}}.


{{addReplicaIfNotPresent}} can also get the info if we want to add the assertion.

> Erasure coding: update BlockInfoContiguousUC and BlockInfoStripedUC to use BlockUnderConstructionFeature
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8909
>                 URL: https://issues.apache.org/jira/browse/HDFS-8909
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: HDFS-7285
>            Reporter: Zhe Zhang
>            Assignee: Jing Zhao
>         Attachments: HDFS-8909.000.patch, HDFS-8909.001.patch, HDFS-8909.002.patch
>
>
> HDFS-8801 converts {{BlockInfoUC}} as a feature. We should consolidate {{BlockInfoContiguousUC}}
and {{BlockInfoStripedUC}} logics to use this feature.



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