Sbt will not collect Spark

Question

I am having problems building Spark using sbt on my machine. An attempt to build without allocating additional memory either ends or the time runs out in the garbage collector; The exact problem was different at different times when I tried. However, any attempt to change the allocated memory, either through Xmx or Xms, and whether it gave more or limited, fails because sbt does not recognize -Xmx or -Xms as a command.

Here is an example of the type of command I tried (from the Spark source directory):

sbt -Xmx2g assembly

Here is the error I get:

java.util.concurrent.ExecutionException:java.lang.OutOfMemoryError: GC overhead limit exceeded
Use 'last' for the full log.
Not a valid command: Xmx2g
Not a valid project: Xmx2g
Expected ':' (if selecting a configuration)
Not a valid key: Xmx2g
Xmx2g
     ^

I am running 64bit Java, version 1.8.0_20.

Answer 1

: Building Spark Maven.

Mavens

Maven , , MAVEN_OPTS. :

export MAVEN_OPTS = "- Xmx2g -XX: MaxPermSize = 512M -XX: ReservedCodeCacheSize = 512m"

:

mvn -DskipTests package

Answer 2

SBT_OPTS "-XX:MaxPermSize=1024m". sbt , .