Yes, we have implemented distributed tracing using eBPF. In simple terms, we use thread-id, coroutine-id, and tcp-seq to automatically correlate all spans. Most importantly, we use eBPF to calculate a syscall-trace-id (without the need to propagate it between upstream and downstream), enabling automatic correlation of a service's ingress and egress requests. For more details, you can refer to our paper presented at SIGCOMM'23: https://dl.acm.org/doi/10.1145/3603269.3604823.

Of course, this kind of Zero Code distributed tracing currently has some limitations. For specific details, please see: https://deepflow.io/docs/features/distributed-tracing/auto-t...

These limitations are not entirely insurmountable. We are actively working on resolving them and continually making breakthroughs.