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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2686) Rip out DistributedUpgrade framework
Date Tue, 21 Aug 2012 14:25:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suresh Srinivas updated HDFS-2686:
----------------------------------

    Attachment: HDFS-2686.patch

I have taken care of other comments.

bq. How about removing dfsadmin command since a 2.x dfsadmin command won't run against a build
where distributed upgrade was supported
You mean remove dfsadmin -upgradeProgress command? Done.

I want do the following cleanup in another jira. These are non-compatible changes. It should
be okay to delete them, because this functionality has not been used for a long time(last
used in 0.14)
# Remove ClientProtocol#distributedUpgradeProgress(), ClientProtocol#processUpgradeCommand
#* related protobuf methods, requests and responses
#* related java methods, request and responses
                
> Rip out DistributedUpgrade framework
> ------------------------------------
>
>                 Key: HDFS-2686
>                 URL: https://issues.apache.org/jira/browse/HDFS-2686
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node, name-node
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Todd Lipcon
>            Assignee: Suresh Srinivas
>         Attachments: HDFS-2686.patch, HDFS-2686.patch, HDFS-2686.patch, HDFS-2686.patch,
HDFS-2686.patch
>
>
> A distributed upgrade framework was introduced long ago in HADOOP-1286 but was only used
twice throughout history, and not since 0.17, where it was considered buggy (see HADOOP-3677).
This is a lot of clutter in our codebase - let's consider removing it?

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