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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2404) HADOOP-2185 breaks compatibility with hadoop-0.15.0
Date Wed, 09 Jan 2008 21:03:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12557433#action_12557433

Konstantin Shvachko commented on HADOOP-2404:

> That's a change from what you stated in action_12550831.

I don't see any contradiction. Besides I already said that many times after that, if you read
a little bit further down
[#action_12551673] and [#action_12553565].

Providing partial conversion is a compromise, which I am willing to accept.
This is temporary for one release, that is why all related code is deprecated in my patch.

> You imply that I am asking this issue to fix a few instances of a widespread problem
unrelated to the issue.

"some processing" of exactly these parameters was introduced in HADOOP-1085. [I opposed it
You just committed it.
If dozens of files is not widespread then what is.

The only thing I agree with you upon is that configuration needs accessors.
But I do not agree that they should be introdueced in this patch, which will lead to massive
and I do not support *static* accessors, and I do not see any of these is supported by anybody

This argument is going on for almost a month now. I do not find it productive.
Unless the compromise proposed by Dhruba is acceptable for you, 
I am planning to submit the bug fix mentioned by Devaraj in a separate issue, and let somebody
else deal with this one.
I mean, people can have different opinions, what do you do with that.

> HADOOP-2185 breaks compatibility with hadoop-0.15.0
> ---------------------------------------------------
>                 Key: HADOOP-2404
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2404
>             Project: Hadoop
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.16.0
>            Reporter: Arun C Murthy
>            Assignee: Konstantin Shvachko
>            Priority: Blocker
>             Fix For: 0.16.0
>         Attachments: ConfigConvert.patch, ConfigConvert2.patch, ConfigurationConverter.patch
> HADOOP-2185 removed the following configuration parameters:
> {noformat}
> dfs.secondary.info.port
> dfs.datanode.port
> dfs.info.port
> mapred.job.tracker.info.port
> tasktracker.http.port
> {noformat}
> and changed the following configuration parameters:
> {noformat}
> dfs.secondary.info.bindAddress
> dfs.datanode.bindAddress
> dfs.info.bindAddress
> mapred.job.tracker.info.bindAddress
> mapred.task.tracker.report.bindAddress
> tasktracker.http.bindAddress
> {noformat}
> without a backward-compatibility story.
> Lots are applications/cluster-configurations are prone to fail hence, we need a way to
keep things working as-is for 0.16.0 and remove them for 0.17.0.

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