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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8487) Merge BlockInfo-related code changes from HDFS-7285 into trunk
Date Fri, 29 May 2015 22:48:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-8487:
----------------------------
    Description: 
Per offline discussion with [~andrew.wang], for easier and cleaner reviewing, we should probably
shrink the size of the consolidated HDFS-7285 patch by merging some mechanical changes that
are unrelated to EC-specific logic to trunk first. Those include renaming, subclassing, interfaces,
and so forth. This umbrella JIRA specifically aims to merge code changes around {{BlockInfo}}
and {{BlockInfoContiguous}} back into trunk.

The structure of {{BlockInfo}} -related classes are shown below:
{code}
                BlockInfo (abstract)
               /         \
BlockInfoStriped          BlockInfoContiguous
       |                        |
       |       BlockInfoUC      |
       |       (interface)      |
       |       /         \      |
BlockInfoStripedUC       BlockInfoContiguousUC
{code}

  was:Per offline discussion with [~andrew.wang], for easier and cleaner reviewing, we should
probably shrink the size of the consolidated HDFS-7285 patch by merging some mechanical changes
that are unrelated to EC-specific logic to trunk first. Those include renaming, subclassing,
interfaces, and so forth. This umbrella JIRA specifically aims to merge code changes around
{{BlockInfo}} and {{BlockInfoContiguous}} back into trunk.


> Merge BlockInfo-related code changes from HDFS-7285 into trunk
> --------------------------------------------------------------
>
>                 Key: HDFS-8487
>                 URL: https://issues.apache.org/jira/browse/HDFS-8487
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: namenode
>    Affects Versions: 2.7.0
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>
> Per offline discussion with [~andrew.wang], for easier and cleaner reviewing, we should
probably shrink the size of the consolidated HDFS-7285 patch by merging some mechanical changes
that are unrelated to EC-specific logic to trunk first. Those include renaming, subclassing,
interfaces, and so forth. This umbrella JIRA specifically aims to merge code changes around
{{BlockInfo}} and {{BlockInfoContiguous}} back into trunk.
> The structure of {{BlockInfo}} -related classes are shown below:
> {code}
>                 BlockInfo (abstract)
>                /         \
> BlockInfoStriped          BlockInfoContiguous
>        |                        |
>        |       BlockInfoUC      |
>        |       (interface)      |
>        |       /         \      |
> BlockInfoStripedUC       BlockInfoContiguousUC
> {code}



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