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https://issues.apache.org/jira/browse/CASSSIDECAR-174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17907230#comment-17907230
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Francisco Guerrero commented on CASSSIDECAR-174:
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Thanks both of you for the reviews !
> Mechanism to have a reduced number of Sidecar instances run operations
> ----------------------------------------------------------------------
>
> Key: CASSSIDECAR-174
> URL: https://issues.apache.org/jira/browse/CASSSIDECAR-174
> Project: Sidecar for Apache Cassandra
> Issue Type: Improvement
> Components: Rest API
> Reporter: Francisco Guerrero
> Assignee: Francisco Guerrero
> Priority: Normal
> Fix For: 1.0
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> This is a proposal to introduce a mechanism to have a reduced number of
> Sidecar instances run operations across the cluster. Ideally we would want a
> unique Sidecar instance perform a subset of operations in the cluster.
> However, the operations might be triggered by more than one Sidecar instance
> so they can be assumed to be safe to be performed by one or more leaders.
>
> Currently Sidecar has existing use cases where we want a single Sidecar
> instance to perform, for example schema initialization. There are upcoming
> use cases in Sidecar that might be able to take advantage of this feature.
> h3. Goals
> - Have the ability to choose a reduced number of instances that can perform
> operations where we would want only a minimal number of instances perform the
> operations
> - Easily write new tasks or define schemas that are going to be executed by
> the reduced number of Sidecar instances
> - Have some loose guarantees on always having at least one leader
> h3. Non-Goals
> - Have a unique global leader
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