[jira] [Resolved] (ACCUMULO-4416) MAC failures when running on host configured with mixed-case hostname

["Christopher Tubbs (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Tubbs resolved ACCUMULO-4416.
-----------------------------------------
    Resolution: Won't Fix

This seems like a client-side misconfiguration (trying to use the wrong case for Kerberos). Since it's not clear which component caused this (and it seems most likely the user's application/client), I'm closing this, since it's not actionable on our end. It new information arises, we can follow up at https://github.com/apache/accumulo/issues

> MAC failures when running on host configured with mixed-case hostname
> ---------------------------------------------------------------------
>
>                 Key: ACCUMULO-4416
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4416
>             Project: Accumulo
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 1.7.1
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Minor
>
> HADOOP-7988
> Kerberos is case-sensitive. DNS is not. I saw a case where a host with mixed-case hostname had a MAC instance that fell over because of a spam of failed RPCs that never succeeded.
> MiniKDC and our code seems to be doing the right thing, but somehow a lower-case on the hostname we were using on the client to communicate with the tserver happened. I'm not sure what component did this. Should look into this with some VM configured with a mixed-case hostname.



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