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https://issues.apache.org/jira/browse/ACCUMULO-4407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christopher Tubbs resolved ACCUMULO-4407.
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Resolution: Duplicate
> Use zk chroot instead of instance id
> ------------------------------------
>
> Key: ACCUMULO-4407
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4407
> Project: Accumulo
> Issue Type: Improvement
> Components: core, zookeeper
> Reporter: Mike Drob
> Priority: Major
>
> This is something I'd like to see considered for Accumulo 2.0. Probably can't
> move on it any sooner because it would break a lot of assumptions, but might
> be possible to make work in a backwards compatible way.
> Currently we use instance id in zookeeper to allow for multiple installations
> sharing the same zk quorum. This is both a confusing amount of indirection
> and a headache for operators when they need to intervene because a uuid is
> not very human-memory friendly.
> Instead, if we specify a chroot path then we can assume the given accumulo
> instance is the only one we will see. This will simplify a lot of APIs
> because in essence we will be combining the zk and instance id arguments into
> one thing.
> I suspect that either we were not aware of zk chroot or it did not exist when
> we started, hence not using it. But there's not really any good excuses left
> today to avoid it.
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