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https://issues.apache.org/jira/browse/ACCUMULO-1717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13769533#comment-13769533
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Corey J. Nolet commented on ACCUMULO-1717:
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How do you have Hadoop configured on the system(s) in question? It looks
like Hadoop has defaulted to use the local filesystem. If the INFO
statements below are not enough, I suppose there could be a more detailed
message. I would not say that the Initialize should fail when the local
filesystem is used as this is a product of the indirection supplied by the
FileSystem object. Maybe a more detailed warning could be issued?
There are components using the underlying Hadoop filesystem in local mode,
specifically the MiniAccumuloCluster.
> accumulo should refuse to init or start with a directory of / (especially
> file:///)
> -----------------------------------------------------------------------------------
>
> Key: ACCUMULO-1717
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1717
> Project: Accumulo
> Issue Type: Improvement
> Components: master
> Affects Versions: 1.6.0
> Reporter: Steve Loughran
>
> Accumulo is happy to init the root directory of a file system. It's hard to
> see when this would ever be a good idea, especially if that filesystem is
> file:/// . A sanity check to catch this -a sign of a bad configuration- would
> stop accidentally damaging the filesystem
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