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我想在Windows 7建立星火1.1.0，我跑了sbt assembly与以下java.lang.OutOfMemoryError: Java heap space错误失败：如何在Windows 7上构建Spark 1.1.0？
...
[warn] Merging 'parquet\schema\Type$Repetition$3.class' with strategy 'first'
[warn] Merging 'parquet\schema\Type$Repetition.class' with strategy 'first'
[warn] Merging 'parquet\schema\Type.class' with strategy 'first'
[warn] Merging 'parquet\schema\TypeConverter.class' with strategy 'first'
[warn] Merging 'parquet\schema\TypeVisitor.class' with strategy 'first'
[warn] Merging 'plugin.properties' with strategy 'first'
[warn] Merging 'plugin.xml' with strategy 'first'
[warn] Merging 'reference.conf' with strategy 'concat'
[warn] Merging 'rootdoc.txt' with strategy 'first'
[warn] Strategy 'concat' was applied to a file
[warn] Strategy 'discard' was applied to 1723 files
[warn] Strategy 'first' was applied to 2713 files
[info] Assembly up to date: D:\app\spark\assembly\target\scala-2.10\spark-assembly-1.1.1-SNAPSHOT-hadoop1.0.4.jar
[info] Packaging D:\app\spark\examples\target\scala-2.10\spark-examples-1.1.1-SNAPSHOT-hadoop1.0.4.jar ...
java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at sbt.ConcurrentRestrictions$$anon$4.take(ConcurrentRestrictions.scala:196)
at sbt.Execute.next$1(Execute.scala:88)
...
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:62)
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:62)
at sbt.Aggregation$$anonfun$evaluatingParser$4$$anonfun$apply$5.apply(Ag
...
at xsbt.boot.Boot$.main(Boot.scala:17)
at xsbt.boot.Boot.main(Boot.scala)
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Unknown Source)
at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(Unknown Source)
at java.lang.AbstractStringBuilder.append(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at scala.collection.mutable.StringBuilder.append(StringBuilder.scala:197)
at scala.collection.TraversableOnce$$anonfun$addString$1.apply(TraversableOnce.scala:327)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableOnce$class.addString(TraversableOnce.scala:320)
at scala.collection.AbstractTraversable.addString(Traversable.scala:105)
at scala.collection.TraversableOnce$class.mkString(TraversableOnce.scala:286)
at scala.collection.AbstractTraversable.mkString(Traversable.scala:105)
at scala.collection.TraversableOnce$class.mkString(TraversableOnce.scala:288)
at scala.collection.AbstractTraversable.mkString(Traversable.scala:105)
at sbt.Package$.sourcesDebugString(Package.scala:111)
at sbt.Package$$anonfun$makeJar$2.apply(Package.scala:106)
at sbt.Package$$anonfun$makeJar$2.apply(Package.scala:106)
at sbt.MultiLogger.log(MultiLogger.scala:31)
at sbt.Logger$class.debug(Logger.scala:121)
at sbt.AbstractLogger.debug(Logger.scala:11)
at sbt.Package$.makeJar(Package.scala:106)
at sbtassembly.Plugin$Assembly$.sbtassembly$Plugin$Assembly$$makeJar$1(Plugin.scala:187)
at sbtassembly.Plugin$Assembly$$anonfun$7$$anonfun$apply$6.apply(Plugin.scala:226)
at sbtassembly.Plugin$Assembly$$anonfun$7$$anonfun$apply$6.apply(Plugin.scala:222)
at sbt.Tracked$$anonfun$outputChanged$1.apply(Tracked.scala:57)
at sbt.Tracked$$anonfun$outputChanged$1.apply(Tracked.scala:52)
at sbtassembly.Plugin$Assembly$.apply(Plugin.scala:230)
at sbtassembly.Plugin$Assembly$$anonfun$assemblyTask$1.apply(Plugin.scala:373)
at sbtassembly.Plugin$Assembly$$anonfun$assemblyTask$1.apply(Plugin.scala:370)
[error] java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Jav
a heap space
[error] Use 'last' for the full log.
我尝试添加-Xmx1024m到sbt.bat文件，但它并没有解决问题。