fast scala compiler: Unable to establish connection to compilation daemon
fsc, scala
Solution
It seems fsc uses `hostname` to connect to compilation server. My hostname didn't response to ping. Changing it to localhost in `/etc/hostname` fixed the problem.
Problem
I have a ubuntu machine under OpenVZ virtualization. When I run fsc test.scala I get: `Unable to establish connection to compilation daemon` Then `ps aux` shows me lots of processes that look like this ``` ren 17482 0.0 0.0 4908 1400 pts/0 S 00:29 0:00 /bin/bash --posix /usr/bin/scala -Djava.net.preferIPv4Stack=true scala.tools ren 17490 0.2 0.5 1246676 24268 pts/0 Sl 00:29 0:00 java -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Xbootc ``` I have run out of ideas how to make it work, version is `Scala code runner version 2.9.2 -- Copyright 2002-2011, LAMP/EPFL`. Any ideas? Edit: Found this, so: - selinux is not installed - export | grep SCALA doesn't return anything, however scalac and scala compiling/running fine so I assume this step is ok - ping localhost - works - fsc -reset - same error - fsc -verbose >> logfile.log 2>&1 produces this: ``` Fast Scala compiler version 2.9.2 -- Copyright 2002-2011, LAMP/EPFL [Given arguments: -verbose] [Transformed arguments: -verbose -current-dir /home/ren] [VM arguments: ] [Temp directory: /tmp/scala-devel/ren] [Port number: 36737] java.net.SocketException: Invalid argument or cannot assign requested address [Connecting to compilation daemon at port 36737 failed; re-trying...] No compile server running: starting one with args '' [Executing command: scala scala.tools.nsc.CompileServer -v] Starting CompileServer on port 34962 Redirect dir is /tmp/scala-devel/ren/output-redirects [Port number: 34962] java.net.SocketException: Invalid argument or cannot assign requested address [Connecting to compilation daemon at port 34962 failed; re-trying...] [Port number: 34962] java.net.SocketException: Invalid argument or cannot assign requested address [Connecting to compilation daemon at port 34962 failed; re-trying...] No compile server running: starting one with args '' and so on ... ``` Edit 2: Well, starting compilation server like this `scala scala.tools.nsc.CompileServer -v` actually works! And it seems fsc did start all those servers, but for some reason it decided it didn't. `fsc -server localhost:port test.scala` works. Which is good enough for now.