errors when build spark-mllib_2.10 - eclipse

Question

I checked out the apache spark project, trying to build the mllib_2.10. However, I got the following error. What have I missed here? Thank you!
I then tried in eclipse: Run as -> Maven build -> goal: package and get the following error:
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp913470727-59183"
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "sparkWorker2-akka.remote.default-remote-dispatcher-42"
Exception in thread "qtp913470727-59184" Exception in thread "qtp1386084932-462" Exception in thread "qtp1406684524-398"
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp149043988-424"
Exception in thread "qtp1386084932-59186"
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp913470727-59184"
Exception in thread "qtp1406684524-397" java.lang.OutOfMemoryError: Java heap space
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "sparkWorker2-scheduler-1"
Exception in thread "qtp1386084932-455" Exception in thread "qtp1406684524-394" Exception in thread "qtp149043988-59182" Exception in thread "qtp913470727-467" java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
Exception in thread "Timer-4" java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
Exception in thread "qtp149043988-419" java.lang.OutOfMemoryError: Java heap space
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "sparkMaster-scheduler-1"
Exception in thread "qtp149043988-418" java.lang.OutOfMemoryError: Java heap space
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "sparkWorker1-akka.actor.default-dispatcher-52"
And I already increase the memory in eclipse.ini like below:
-XX:MaxPermSize=512m
-Xms128m
-Xmx2048m
Is there a way to get this thing work in eclipse? Thanks!

Answer 1

If you can build it on the command line successfully, it will work in Eclipse with M2Eclipse as well.
Just use Run As - Maven build ...
and configure as desired.
The warnings you see are about the incremental behaviour within Eclipse, but even if they dont fully match and work, you will still be able to build the project.
If you are running out of memory it might be the meory allocated to Maven or Eclipse. Set the memory for Maven with the MAVEN_OPTS environment variable.