It turned out to be a bug in another library we were using. It used grpc in the background as well.
Kind regards, Matthias Op dinsdag 29 april 2025 om 16:53:07 UTC+2 schreef Matthias Verstraete: > Hi all, > > We are currently experiencing problems with a grpc setup. > Client and server are both running on the same system. Each is running in > a separate docker container. The server is implemented in c++ and is using > the ubuntu system package (1.30.2-3build6). The client is implemented in > python and is using grpcio 1.67.1 (originally we used 1.71.1, but some > online threads suggested to rollback to 1.67.1 which unfortunately didn't > help). > > On the client side we see the following log line appear regularly: > fork_posix.cc:77] Other threads are currently calling into gRPC, skipping > fork() handlers > > And after a while the following log line shows up > work_stealing_thread_pool.cc:241] Check failed: !IsQuiesced() > > At that point our python process crashes. > > We are currently still trying to find more information about what is > happening, but it's hard to reproduce this issue with a minimal setup. What > we tried already: > * We tried reproducing the issue on another system with same OS, docker > images and test setup and failed to reproduce it. > * We tried to run a simple python script which does grpc calls (without > our client code) but failed to reproduce it then. > * Our server communicates to external devices via a different protocol. > When we disabled this communication, we also could reproduce the problem > anymore. > > If anyone might have an insight of what might be happening or in which > direction we should look, that would be greatly appreciated. > > > Thanks and kind regards, > > Matthias > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/grpc-io/3b6c9fee-eb02-4242-9ba6-97ff46e926ebn%40googlegroups.com.
