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https://issues.apache.org/jira/browse/WHIRR-329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13045603#comment-13045603
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Tom White commented on WHIRR-329:
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> How about using an existing ZooKeeper cluster for this feature? We could put
> the quorum address in config and also add a ZooKeeper based cluster state
> persistence option.
+1
We should also make it work for local file state persistence, so that you can't
start a cluster if there's already an instances file in ~/.whirr/<cluster-name/.
> Ensure the same cluster can't be started twice
> ----------------------------------------------
>
> Key: WHIRR-329
> URL: https://issues.apache.org/jira/browse/WHIRR-329
> Project: Whirr
> Issue Type: Improvement
> Reporter: Andrei Savu
>
> We should add some sort of distributed locking mechanism so that we can be
> sure that the same cluster can't be started twice. Tibor was the first one to
> raise this issue.
> Could a blobstore be used for locking?
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