Github user shaneknapp commented on the pull request:
https://github.com/apache/spark/pull/5432#issuecomment-91358326
so i just grepped through the code and found stuff like this:
yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala:
YarnSparkHadoopUtil.expandEnvironment(Environment.JAVA_HOME) + "/bin/java",
"-server"
yarn/src/main/scala/org/apache/spark/deploy/yarn/ExecutorRunnable.scala:
YarnSparkHadoopUtil.expandEnvironment(Environment.JAVA_HOME) + "/bin/java",
i've never explicitly set JAVA_HOME in jenkins' slave user space before,
but that's obviously why it's failing. that's pretty bad code imo.
solutions:
* explicitly set JAVA_HOME in each slave's config (bad, as it ties that
slave to whatever is on system java)
* if JAVA_HOME isn't set, use whatever java is in the path (good)
* explicitly define which java version to test against in the jenkins
build's config
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