Christopher L. Shannon created AMQ-6091:
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Summary: Java runtime policy update should support a list of
properties to apply retrospectively
Key: AMQ-6091
URL: https://issues.apache.org/jira/browse/AMQ-6091
Project: ActiveMQ
Issue Type: Improvement
Components: Broker
Affects Versions: 5.13.0
Reporter: Christopher L. Shannon
Assignee: Christopher L. Shannon
Priority: Minor
Right now when the {{JavaRuntimeConfigurationBroker}} is used to update a
Policy entry, every property of the Policy is re-applied to matching
destinations after update. It would also be nice if an optional list of
properties could be provided during the update.
The behavior of this option would be to still apply the entire Policy entry
update (so all new destinations get the policy changes), but for existing
destinations only properties that match what's in the property list would get
applied.
The use case here would be wanting to apply only one or more properties that
changed on a Policy to a destination, but not wanting to overwrite the other
properties that might have been changed since creation of the destination.
For example, say through JMX someone updated the maxPageSize property on a
specific Queue to something other than what is specified on the Policy. After
the fact, it might be desirable to update a different property on the policy
that matches that Queue and have it be applied to the Queue. Normally this
policy update would overwrite all properties on the existing Queue, but in this
case we would not want to overwrite the maxPageSize setting as it was changed
after the fact. So providing a list of properties to apply would prevent that
setting from being changed.
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