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https://issues.apache.org/jira/browse/ACCUMULO-3779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14533061#comment-14533061
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Christopher Tubbs commented on ACCUMULO-3779:
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A warning when no client.conf is found seems reasonable, as does adding a 
template for it. I wonder if the template should be named 
"client.conf.template", though, so it's not automatically used (could interfere 
with existing deployments if a user has one in a lower-priority location)?

I don't remember completely dropping support for fallback to using 
accumulo-site.xml, but I would be in favor of that, especially if we made it 
easier to create/use client.conf and warned appropriately.

> Shell fails to connect to ZooKeeper when client.conf doesn't exist
> ------------------------------------------------------------------
>
>                 Key: ACCUMULO-3779
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3779
>             Project: Accumulo
>          Issue Type: Bug
>          Components: shell
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Blocker
>             Fix For: 1.7.0
>
>
> Stood up 1.7.0, forgot to make a client.conf (there wasn't a template 
> included in the example confs).
> Tried to connect to the shell and it just timed out trying to talk to 
> ZooKeeper at the default host of "localhost:2181". I feel like this is a 
> regression against 1.6 because things used to attempt to work by trying to 
> read accumulo-site.xml.
> If we are intentionally not supporting automatic fallback to 
> accumulo-site.xml, we should have a log message that informs the user when we 
> construct a ClientConfiguration without any actual configuration (as that's 
> likely an error).



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