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POOut of memory error during Scala compilation
 

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  1. POOut of memory error during Scala compilation
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    <p>I'm using the macro-heavy <code>scala-pickling</code> along with <code>shapeless</code>, 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:</p> <pre><code>[error] &lt;tpt&gt; // tree.tpe=tasks.anonfun$218 [error] Block( // tree.tpe=Unit [error] Apply( // def &lt;init&gt;(): scala.runtime.AbstractFunction1 in class AbstractFunction1, tree.tpe=scala.runtime.AbstractFunction1 [error] SimpleMiddlebury$$anonfun$218.super."&lt;init&gt;" // def &lt;init&gt;(): 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 </code></pre> <p>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.</p> <p>However, I <em>have</em> tried increasing the available memory, by adjusting the heap setting in <a href="https://github.com/paulp/sbt-extras" rel="nofollow">paulp's sbt</a> script to <code>-Xmx8g</code>, and I still get this error. Is this the right flag?</p> <p>Ideas?</p> <p>EDIT: I added the "scala-pickling" and "shapeless" tags, because this is something other users of those libraries may have encountered.</p>
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    1. USemchristiansen
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    1. COI believe you could get a better support from the author directly of the script. If I may have a suggestion, open an issue at paulp's sbt-extras repo.
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      1. USrlegendi
 

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