Hi,
I am running into a really odd issue where the following line (obtained
from hello world's greeter_server.py example) freezes when it is executed
on a HPC cluster.
server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
The following stack trace could provide more information on where the
greeter_server program gets stuck within the gRPC Python library:
Thread 204411 (active): "MainThread"
__init__ (grpc/_server.py:958)
create_server (grpc/_server.py:1003)
server (grpc/__init__.py:2064)
serve (greeter_server.py:31)
<module> (greeter_server.py:40)
(Apologies for the poor formatting)
The weird thing about this issue is that
- The hello world example (greeter_server + greeter_client) works fine
locally.
- I attempted to debug by adding the "GRPC_VERBOSITY=DEBUG
GRPC_TRACE=all" flag (and confirmed it works locally), but nothing gets
printed out while running on the HPC cluster. Furthermore, no exception is
thrown, rather the program simply freezes with the above stack trace.
I'm wondering if anyone has run into this issue before. I have spoken to
the administrator of the HPC cluster and as far as I know there are no
specific restrictions from preventing gRPC servers from being hosted.
Thanks in advance!
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