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From "Eli Collins (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3216) DatanodeID should support multiple IP addresses
Date Mon, 09 Apr 2012 20:29:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins updated HDFS-3216:
------------------------------

    Attachment: hdfs-3216.txt

#1 We still need the notion of canonical IP, mostly for cases that don't care about multiple
IP addresses. Updated the javadoc.
#2 Yes, when reading/writing DatanodeInfos to/from streams (same as before when creating a
DatanodeID w/o a name)
#3 Done
#4 It's tested by TestWebHdfsFileSystemContract#testGetFileBlockLocations. It currently only
tests the first IP vs the whole array since LocatedBlock (HDFS) is multi-IP aware but BlockLocation
(common) is not. Fixed the cast, now casts to String and serializes/deserializes the IPs,
the test does check this (was failing now passes).
#5 We expect this field to always contain IPs, see HDFS-3144, we no longer overload this field.
Filed HDFS-3230 to cleanup the tests, will do it on trunk since its independent of this change.
                
> DatanodeID should support multiple IP addresses
> -----------------------------------------------
>
>                 Key: HDFS-3216
>                 URL: https://issues.apache.org/jira/browse/HDFS-3216
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>         Attachments: hdfs-3216.txt, hdfs-3216.txt
>
>
> The DatanodeID has a single field for the IP address, for HDFS-3146 we need to extend
it to support multiple addresses.

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