Rover: eBPF Profiling for Java in K8s & High Rover Pod Memory Usage

[rihemlahmar]

Hi community,

We're using SkyWalking 10.0.1 with Java 21 microservices on Kubernetes . We've deployed SkyWalking Rover v 0.7.0

We have two main points:

eBPF Profiling for Java: We're looking to leverage Rover for eBPF profiling (CPU, memory, network, I/O) of our Java microservices in Kubernetes. Could you confirm Rover's capabilities here and provide guidance on what kind of insights we can expect ?

High Rover Pod Memory Consumption: Our Rover (daemonset) pods are consuming a significant amount of memory (7.5Gi or 5Gi)
Is this typical, or could it indicate a misconfiguration or an issue with Rover itself?

Looking for guidance and advice.

Thanks in advance!!!

[wu-sheng]

Could you confirm Rover's capabilities here and provide guidance on what kind of insights we can expect ?

No, it can't. It only supports compiled languages. JVM isn't in that scope.

Network is fine(besides tls), it is as same as others.

[wu-sheng]

About memory, you need to wait for @mrproliu back from his vacation. Later next week.

[rihemlahmar]

Thanks for getting back to me so quickly!!
I'll look forward to discussing the Rover memory usage with @mrproliu next week. Appreciate the info on network monitoring in the meantime.

[mrproliu]

You can open the pprof module in the rover: https://github.com/apache/skywalking-rover/blob/79292fe07f17f98f486e0c4471213e1961fb2d1d/configs/rover_configs.yaml#L162. Then you can do memory profiling about the rover.