Michael Jumper created GUACAMOLE-317:
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Summary: 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
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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