How to use mqadmin observer consumer client's status when consumer connect with Proxy

[zhhisabugs]

My consumer clients connect RocketMQ use Proxy's grpc port, I can't user mqadmin consumerConnection or consumerProgress to observe my clients's status. I want to konw what can I do if I want to observe client's status

[chakravarthyBatna]

It depends on how your Proxy is deployed.

• Local mode (Proxy runs inside the broker): gRPC consumers are registered in the broker, so mqadmin works as usual.
• Cluster mode (separate Proxy): gRPC consumers are registered only in the Proxy. The Proxies share them with each other, but they are never sent to the brokers. mqadmin consumerConnection -g <group> asks a broker, so it says the group is not online.

What you can do in cluster mode:

1. Connections: point mqadmin at the Proxy's remoting port (default 8080, not the gRPC port 8081). The Proxy answers this request from its own consumer table:

   sh mqadmin consumerConnection -n <namesrv> -g <group> -b <proxyHost>:8080

2. Lag / progress: sh mqadmin consumerProgress -n <namesrv> -g <group> (without -s) still works, because offsets and lag are read from the brokers.

3. Limits: consumerProgress -s and consumerStatus need detailed running info from each client. For gRPC clients the Proxy can only get a thread stack dump, so subscription and consume statistics are not available there.

[zhhisabugs]

Thank you. It works

[zhhisabugs]

However, I've encountered another issue: in a 2-node proxy setup, using the -b parameter returns a valid response from only one node, while the other returns a "consumer group not online" error.