Hi all, sadebugd and related options in jhsdb have been deprecated by JDK-8338894 since JDK 24. I agree with RMI removal from SA, but I'd like to keep remote debugger feature for some cases.
For example, sadebugd can be used to debug in distroless container on Kubernetes. As you know distroless container does not have any shell, and also no JDK tools including jhsdb. If we want to analyze hang-up'ed JVM in it with HSDB, we have to attach ephemeral container and expose the port for debugging to connect from HSDB. I talked about use case of jhsdb debugd on Kubernetes (in Japanese...) https://www.youtube.com/watch?v=5evMwwPUl14&t=346s So I want to alternative it to HTTP: https://github.com/openjdk/jdk/compare/master...YaSuenag:jdk:http-sadebugd This change works with some CLHSDB commands (jstack, findsym at least). Note that it has some errors and does not have some implementations and test cases. You can use this following command: Server: jhsdb httpserver --host testhost --port 8080 --pid <PID> Client: jhsdb clhsdb --httpconnect http://testhost:8080/ This change transports debugging data on HTTP. We can set reverse proxy (for HTTPS endpoint and/or authentication) for secure connection if need. Remote debugging removal has been filed as JDK-8340121. It does not seem to be targeted, but the work might be started soon. So I'd like to make alternatives by then. What do you think? Thanks, Yasumasa
