[
https://issues.apache.org/jira/browse/HADOOP-2404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12551105
]
Doug Cutting commented on HADOOP-2404:
--------------------------------------
> There are 5 servers involved.
Then that's five one-line changes. I'd rather see those than establish the
precedent of making application-specific changes in Configuration.java. Each
server can call the same method. When that method is removed in the next
release the compiler will identify the five calls to it that must be removed.
Better yet, you could use static methods to access these parameters. So
instead of directly reading dfs.http.bindAddress, add a package-private static
method getHttpBindAddress(Configuration) that HDFS calls instead of directly
reading the Configuration property in six different places. That method can
implement back-compatibility.
> 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: 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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
