Java says: all ports in use

[LoekvanKooten]

Microsoft Windows [Version 10.0.17134.112]

./mmt start

gives:

2018-07-03 15:38:15,184 INFO eu.modernmt.aligner.fastalign.FastAlign [main] Loaded 1 FastAlign models in 0s 2018-07-03 15:38:15,465 INFO eu.modernmt.cluster.ClusterNode [main] Model loaded in 0.323s 2018-07-03 15:38:15,466 INFO eu.modernmt.cluster.ClusterNode [main] Starting embedded Kafka process 2018-07-03 15:38:15,477 FATAL eu.modernmt.facade.ModernMT [main] Unexpected exception thrown by thread [main] eu.modernmt.engine.BootstrapException: java.io.IOException: Port 9092 is already in use by another process at eu.modernmt.cluster.kafka.EmbeddedKafka.start(EmbeddedKafka.java:36) at eu.modernmt.cluster.ClusterNode.start(ClusterNode.java:339) at eu.modernmt.facade.ModernMT.start(ModernMT.java:57) at eu.modernmt.cli.ClusterNodeMain.main(ClusterNodeMain.java:168) Caused by: java.io.IOException: Port 9092 is already in use by another process at eu.modernmt.cluster.kafka.EmbeddedKafka.start(EmbeddedKafka.java:59) at eu.modernmt.cluster.kafka.EmbeddedKafka.start(EmbeddedKafka.java:32) ... 3 more

The server should start. Port 9092 is already in use, but netstat shows that no port is in use or whatsoever. Starting the engine on another port does not change anything: all ports are in use, while netstat shows that no ports are used at all.

[shoffmeister]

Is port 9092 in use on the Windows side?

netstat, when executed inside the WSL container, only sees the Linux side.

Example: sudo netstat -plnt right now gives me

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

although my Windows "host" has servers running.

(Aside from that, perhaps you could amend your steps with what needs to be installed to be able to execute ./nmt start - something like sudo apt install my-ocean?)

[therealkenc]

CONTRIBUTING.md

[therealkenc]

Wait I am following the OP now.

Port 9092 is already in use, but netstat shows that no port is in use or whatsoever

netstat doesn't fly on WSL #2249. There is no Linux side. Try:

$  netstat.exe -an | grep 9092

This is either a dupe or linux-behavior depending on one's disposition. Going with the latter given the issue title. The port is occupied.

[LoekvanKooten]

Thank you for your comments so far. The port is not used on Windows either.

Full installation instructions for ModernMT:
https://github.com/ModernMT/MMT/blob/master/INSTALL.md

I went for option 2 (Binaries) as there was no way I could get the Docker working (nvidia-docker doesn't like WSL I hear).

[LoekvanKooten]

This issue has been confirmed here: modernmt/modernmt#340 but the makers of ModernMT basically blame WSL and won't dive into it.

[therealkenc]

basically blame WSL and won't dive into it.

No what they said was "try changing ports", which is indeed good advice. In your OP you said quoth "Port 9092 is already in use". In that case (sic) neither ModernMT/MMT nor WSL is to "blame" and there isn't an issue to confirm or deep dive. If you had the port in use already on Real Linux it would not work on that port either. It works in VirtualBox because you are now on a different network address and the port is not in use there. A VM might well be better suited to your scenario if you want two processes open on port 9092 at the same time.

[therealkenc]

Wait; hold up. I clicked through your install link and ran headlong into "At least one CUDA-capable GPU". So you've got bigger (unrelated) issues than occupied ports. You will want to stick to a VM for now until CUDA is supported in WSL regardless.

[LoekvanKooten]

Changing the ports didn't change anything, but if CUDA is not supported by WSL yet, then everything indeed ends there for now. Thank you very much for looking into this!