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From "Ewan Higgs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6708) StorageType should be encoded in the block token
Date Mon, 27 Feb 2017 14:02:45 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885825#comment-15885825
] 

Ewan Higgs commented on HDFS-6708:
----------------------------------

Hi,
Could I get a review on this if/when someone has time? This is slowing HDFS-9807 since they
touch the same code.

Based on the people who previously reviewed changes to the BlockTokenIdenfier, I think [~chris.douglas],
[~andrew.wang], and [~daryn] are good candidates for review. Of course, [~arpitagarwal] as
well as he's the reporter.

Thanks

> StorageType should be encoded in the block token
> ------------------------------------------------
>
>                 Key: HDFS-6708
>                 URL: https://issues.apache.org/jira/browse/HDFS-6708
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>    Affects Versions: 2.4.1
>            Reporter: Arpit Agarwal
>            Assignee: Ewan Higgs
>             Fix For: 3.0.0-alpha3
>
>         Attachments: HDFS-6708.0001.patch, HDFS-6708.0002.patch, HDFS-6708.0003.patch
>
>
> HDFS-6702 is adding support for file creation based on StorageType.
> The block token is used as a tamper-proof channel for communicating block parameters
from the NN to the DN during block creation. The StorageType should be included in this block
token.



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