[Question] Support querying via prometheus for rocketMQ

[Alanxtl]

Question

According to the doc, rocketMQ is supported for querying metrics using the Prometheus protocol. Currently the code seems to use the method of creating an instance to query information (#1046), so the metrics that could be queried seems limited and its a waste of connection resource. I think it is necessary to support querying via prometheus for rocketMQ.

btw, I'm not sure if I should create a [Task], so I just create a [Question].

[tomsun28]

@Ceilzcx how about this, suggest use Prometheus protocol to query the rocketMQ metrics too.

[Ceilzcx]

Can you briefly describe the advantages of changing to this？
Because now too few metrics to monitor rocketmq，and sdk is not support or other reason？

[Alanxtl]

@Ceilzcx, according to apache/rocketmq#5615 (comment) and RIP-46, they have introduced new metrics in Prometheus way. See doc for detailed metrics.

Besides, RIP-46, also mentioned that

using mqadmin tools, which puts additional pressure on broker and client.

[Ceilzcx]

@Ceilzcx, according to apache/rocketmq#5615 (comment) and RIP-46, they have introduced new metrics in Prometheus way. See doc for detailed metrics.

Besides, RIP-46, also mentioned that

using mqadmin tools, which puts additional pressure on broker and client.

good idea. Need to be compatible with old logic？

[Alanxtl]

@Ceilzcx, according to apache/rocketmq#5615 (comment) and RIP-46, they have introduced new metrics in Prometheus way. See doc for detailed metrics.
Besides, RIP-46, also mentioned that

using mqadmin tools, which puts additional pressure on broker and client.

good idea. Need to be compatible with old logic？

I do not think it is necessary, the new method covers the metrics of the old one can query after all.