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https://issues.apache.org/jira/browse/SOLR-9515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16757782#comment-16757782
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Uwe Schindler commented on SOLR-9515:
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The only thing that might be an issue here: Maybe Hadoop does some separate
permission stuff which interferes with Lucene. In code you can always further
restrict permissions (we have a test using that feature) in some
AccessController-closure.
I'd suggest to enable logging of permission checks:
https://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/envvars003.html,
e.g. {{-Djava.security.debug="access,failure"}}
> Update to Hadoop 3
> ------------------
>
> Key: SOLR-9515
> URL: https://issues.apache.org/jira/browse/SOLR-9515
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Mark Miller
> Assignee: Kevin Risden
> Priority: Blocker
> Fix For: 8.0, master (9.0)
>
> Attachments: SOLR-9515.patch, SOLR-9515.patch, SOLR-9515.patch,
> SOLR-9515.patch, SOLR-9515.patch, SOLR-9515.patch
>
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> Hadoop 3 is not out yet, but I'd like to iron out the upgrade to be prepared.
> I'll start up a dev branch.
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