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https://issues.apache.org/jira/browse/HDFS-12410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161810#comment-16161810
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Íñigo Goiri commented on HDFS-12410:
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[~ajayydv] resorting to default might be another option.
However, in our original use case, the problem was using the same
{{hdfs-site.xml}} for a version of Hadoop that supported {{PROVIDED}} and
another without it.
With the current behavior the Datanode doesn't start at all.
With your approach, I'm not sure what would try to do with the {{PROVIDED}}
file path if it assumes {{DEFAULT}}.
For our use case, I'd prefer to log and ignore.
> Ignore unknown StorageTypes
> ---------------------------
>
> Key: HDFS-12410
> URL: https://issues.apache.org/jira/browse/HDFS-12410
> Project: Hadoop HDFS
> Issue Type: Task
> Components: datanode, fs
> Reporter: Chris Douglas
> Assignee: Ajay Kumar
> Priority: Minor
>
> A storage configured with an unknown type will cause runtime exceptions.
> Instead, these storages can be ignored/skipped.
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