I got the latest version of typesafe activator in Ubuntu 14.04 LTS. I also have the latest version of Scala/SBT etc etc.
When I start the Active Stocks application I get the following error java.io.IOException: User limit of inotify watches reached
. I have no idea what this is ...
bravegag@zeus:~/code/activestocks$ ./activator
[info] Loading project definition from /home/bravegag/code/activestocks/project
[info] Set current project to reactive-stocks (in build file:/home/bravegag/code/activestocks/)
[reactive-stocks] $ ~run
java.io.IOException: User limit of inotify watches reached
at sun.nio.fs.LinuxWatchService$Poller.implRegister(LinuxWatchService.java:261)
at sun.nio.fs.AbstractPoller.processRequests(AbstractPoller.java:260)
at sun.nio.fs.LinuxWatchService$Poller.run(LinuxWatchService.java:326)
at java.lang.Thread.run(Thread.java:745)
[trace] Stack trace suppressed: run last compile:run for the full output.
[error] (compile:run) java.lang.reflect.InvocationTargetException
[error] Total time: 0 s, completed Nov 29, 2014 4:57:15 PM
1. Waiting for source changes... (press enter to interrupt)
Checking OS limits I see:
bravegag@zeus:~$ cat /proc/sys/fs/inotify/max_user_instances
128
bravegag@zeus:~$ cat /proc/sys/fs/inotify/max_user_watches
8192
not my soloution, but its always nice to have the anwser where it belongs:
will solve the problem imminently.
otherwise set the value in
/etc/sysctl.conf
by simply addingfs.inotify.max_user_watches=30000
(don't forget the newline)References for what actually happens can be found here: http://www.la-samhna.de/samhain/manual/finotify.html
After that
$ activator run
worked as usual.