问题描述
我正在使用宏重的 scala-pickling
和 shapeless
,并且我不断地使 Scala 2.10.3 编译器崩溃,并出现明显的内存不足错误.错误消息的尾部如下所示:
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.The tail of the error message looks like this:
[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
我正在监控我的系统内存,而且有很多,所以如果这真的是内存分配的问题,我猜我可以在某处设置一些 JVM 标志来消除问题.
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.
但是,我已经尝试通过调整 paulp 的 sbt 脚本到 -Xmx8g
,但我仍然收到此错误.这是正确的标志吗?
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.Is this the right flag?
想法?
我添加了scala-pickling"和shapeless"标签,因为这些库的其他用户可能遇到过这种情况.
I added the "scala-pickling" and "shapeless" tags, because this is something other users of those libraries may have encountered.
推荐答案
在你的sbt安装目录下有一个文件./bin/sbt
in your sbt installation directory lives a file ./bin/sbt
将此文件中的 -Xss 设置更新为更高的阈值.将它设置为 -Xss8M 足以让我的无形堆栈溢出编译问题消失
update the -Xss settings in this file to a higher threshold. Setting it to -Xss8M was enough for my shapeless stack overflow compilation issues to go away
这篇关于Scala 编译期间内存不足错误的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!