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https://issues.apache.org/jira/browse/HADOOP-6964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14308102#comment-14308102
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Akira AJISAKA commented on HADOOP-6964:
---------------------------------------
bq. validate multiple definition of attributes and elements and abort with
RuntimeException
I'm thinking it would be sufficient to output warning message as follows:
{code:title=Configuration.java}
if ("name".equals(field.getTagName()) && field.hasChildNodes())
if (attr != null) {
LOG.warn("Detected multiple definitions. Property name: " + attr
+
" will be overwritten.");
}
attr = StringInterner.weakIntern(
((Text)field.getFirstChild()).getData().trim());
{code}
However, I'm okay with doing this by a separate jira. +1 for the patch, thanks
Kengo and Allen.
> Allow compact property description in xml
> -----------------------------------------
>
> Key: HADOOP-6964
> URL: https://issues.apache.org/jira/browse/HADOOP-6964
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Reporter: Owen O'Malley
> Assignee: Kengo Seki
> Labels: newbie
> Attachments: HADOOP-6964.patch
>
>
> We should allow users to use the more compact form of xml elements. For
> example, we could allow:
> {noformat}
> <property name="mapred.local.dir" value="/disk/0/mapred,/disk/1/mapred"/>
> {noformat}
> The old format would also be supported.
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