Github user tgravescs commented on the pull request: https://github.com/apache/spark/pull/590#issuecomment-42089041 I'm getting errors trying to build this against yarn-alpha hadoop-0.23. Its a huge error message, but here is part of it: [ERROR] while compiling: /home/tgraves/tgravescs-spark/core/src/main/scala/org/apache/spark/SecurityManager.scala during phase: refchecks library version: version 2.10.4 compiler version: version 2.10.4 Exception in thread "main" java.lang.AssertionError: assertion failed: org.apache.avro.reflect.Stringable
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