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Question

The customer is upgrading the HiveMQ broker version from 3.x to 4.x and would like to upgrade the following plugins

  • hivemq-sys-topic-plugin-3.0.0.jar

  • jvm-metrics-plugin-3.1.0.jar etc. 

How can they achieve the same with HiveMQ 4.x?

Answer

  1.  jvm-metrics-plugin-3.1.0.jar plugin: HiveMQ 4, by default, exposes all JMX metrics on remote port 9010, and the customer can monitor them using the monitoring tools. Hence this plugin is deprecated and is not required anymore.

  2. hivemq-sys-topic-plugin-3.0.0.jar plugin: HiveMQ 4 does not support $SYS topics for security reasons. Hence this plugin is not supported with HiveMQ 4.

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