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https://issues.apache.org/jira/browse/GUACAMOLE-317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Jumper resolved GUACAMOLE-317.
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Resolution: Done
Fix Version/s: 0.9.14-incubating
> Allow for failover-only connections
> -----------------------------------
>
> Key: GUACAMOLE-317
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-317
> Project: Guacamole
> Issue Type: Improvement
> Components: guacamole-auth-jdbc
> Reporter: Michael Jumper
> Assignee: Michael Jumper
> Fix For: 0.9.14-incubating
>
>
> Particularly in light of recent changes implementing connection failover
> (GUACAMOLE-267), it's become clear that balancing group order needs to be
> predictably (and configurably) deterministic.
> A good portion of that requirement is achieved via GUACAMOLE-102, which
> allows connections to be weighted, however:
> Consider the case where a balancing group contains several connections, which
> are meant to be used only when other connections are unavailable (a [hot
> spare|https://en.wikipedia.org/wiki/Hot_spare]). As currently implemented,
> such a balancing group will always distribute load evenly across its
> connections (or at least evenly with respect to weights), including the
> connections intended for failover only. Though GUACAMOLE-267 will cause the
> group to avoid failing connections, the backup connections will still be used
> in cases where no connections are failing.
> Somehow, balancing group policy needs to be configurable to the extent that
> underlying connections can be dedicated to backup/failover cases.
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