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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8032) Erasure coding: shrink size of indices in BlockInfoStriped
Date Wed, 18 Jan 2017 22:52:26 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang updated HDFS-8032:
------------------------------
    Parent Issue: HDFS-8425  (was: HDFS-8031)

> Erasure coding: shrink size of indices in BlockInfoStriped
> ----------------------------------------------------------
>
>                 Key: HDFS-8032
>                 URL: https://issues.apache.org/jira/browse/HDFS-8032
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>
> In a _m+k_ erasure coding schema, the first _(m+k)_ slots in {{BlockInfoStriped}} do
not need indexing, since the _ith_ storage directly maps to the _ith_ block in the erasure
coding block group.



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