[英]Out of memory error during Scala compilation
I'm using the macro-heavy scala-pickling
along with shapeless
, and I keep crashing the Scala 2.10.3 compiler with an apparent out of memory error. 我正在使用大量的scala-pickling
和shapeless
,并且我一直使Scala 2.10.3编译器崩溃,并出现明显的内存不足错误。 The tail of the error message looks like this: 错误消息的结尾看起来像这样:
[error] <tpt> // tree.tpe=tasks.anonfun$218
[error] Block( // tree.tpe=Unit
[error] Apply( // def <init>(): scala.runtime.AbstractFunction1 in class AbstractFunction1, tree.tpe=scala.runtime.AbstractFunction1
[error] SimpleMiddlebury$$anonfun$218.super."<init>" // def <init>(): scala.runtime.AbstractFunction1 in class AbstractFunction1, tree.tpe=()scala.runtime.AbstractFunction1
[error] Nil
[error] )
[error] ()
[error] )
[error] )
[error] )
[error]
[error] == Expanded type of tree ==
[error]
[error] ConstantType(value = Constant(anon$326))
[error]
[error] uncaught exception during compilation: java.io.IOException
[error] Cannot allocate memory
I'm monitoring my system memory, and there's plenty, so if this is really a problem with memory allocation, I'm guessing there's some JVM flag I can set somewhere to make the problem go away. 我正在监视我的系统内存,并且有很多内存,因此,如果这确实是内存分配问题,我猜我可以在某个地方设置一些JVM标志以使问题消失。
However, I have tried increasing the available memory, by adjusting the heap setting in paulp's sbt script to -Xmx8g
, and I still get this error. 不过,我曾尝试增加可用内存,通过调整堆设置paulp的SBT脚本-Xmx8g
,我仍然得到这个错误。 Is this the right flag? 这是正确的标志吗?
Ideas? 想法?
EDIT: I added the "scala-pickling" and "shapeless" tags, because this is something other users of those libraries may have encountered. 编辑:我添加了“ scala-pickling”和“ shapeless”标签,因为这是那些库的其他用户可能遇到的东西。
in your sbt installation directory lives a file ./bin/sbt sbt安装目录中的文件为./bin/sbt
update the -Xss settings in this file to a higher threshold. 将此文件中的-Xss设置更新为更高的阈值。 Setting it to -Xss8M was enough for my shapeless stack overflow compilation issues to go away 将其设置为-Xss8M足以解决我无形的堆栈溢出编译问题
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