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https://issues.apache.org/jira/browse/HADOOP-1347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajagopal Natarajan updated HADOOP-1347:
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Affects Version/s: (was: 0.12.2)
Status: Patch Available (was: Open)
Added a case to check if the value was previously set, to be unset, in the case
where the new configuration has an empty value for the field.
> Configuration XML bug: empty values
> -----------------------------------
>
> Key: HADOOP-1347
> URL: https://issues.apache.org/jira/browse/HADOOP-1347
> Project: Hadoop
> Issue Type: Bug
> Components: conf
> Reporter: Eelco Lempsink
> Priority: Critical
>
> The configuration parser doesn't handle empty values well:
> if ("value".equals(field.getTagName()) && field.hasChildNodes())
> This logic makes it impossible to 'unset' a field when loading multiple
> configurations.
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