This extension denies any subscription to the root wildcard topic. In general, root wildcard subscribers tend to be a bottleneck in many scenarios.
- Unzip the downloaded zip file
- Copy the folder hivemq-deny-wildcard-extension to your [HIVEMQ_HOME]/extensions folder
No configuration needed, works out of the box.
After the extension is installed start HiveMQ. Now no client is allowed to subscribe to #.
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