Is there a way to increase the memory during assembly (the plugin)? I notice that adding more memory to sbt through SBT_OPTS does't really help. I suspect that assembly is forking a separate JVM that doesn't inherit the JVM configurations from sbt.
Here is the error:
java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space
Here is what I tried without much luck:
javaOptions in assembly += "-Xmx2g"
I suspect that assembly is forking a separate JVM that doesn't inherit the JVM configurations from sbt.
I'm the author of sbt-assembly. assembly
does not fork a separate JVM. You can see the code here and check - https://github.com/sbt/sbt-assembly/blob/0.13.0/src/main/scala/sbtassembly/Assembly.scala#L239-L246
Make sure to export SBT_OPTS. Mine is "-Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=2G -Xss2M"
I met the same issue before, Please do it as below for windows. The issue could be gone.
set SBT_OPTS="-Xmx2G"
sbt assembly
您可以在Linux环境中使用以下提到的命令来增加堆大小:
sbt -J-Xms2048m -J-Xmx2048m assembly
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