Remove SparkHadoopUtil stuff from SparkEnv
fix sparkhdfs lr test
Merge remote-tracking branch 'upstream/master' into sparkHadoopUtilFix
Add support for local:// URI scheme for addJars()

This indicates that a jar is available locally on each worker node.
move the hadoopJobMetadata back into SparkEnv
Merge pull request #125 from velvia/2013-10/local-jar-uri

Add support for local:// URI scheme for addJars()

This PR adds support for a new URI scheme for SparkContext.addJars():  `local://file/path`.
The *local* scheme indicates that the `/file/path` exists on every worker node.    The reason for its existence is for big library JARs, which would be really expensive to serve using the standard HTTP fileserver distribution method, especially for big clusters.  Today the only inexpensive method (assuming such a file is on every host, via say NFS, rsync, etc.) of doing this is to add the JAR to the SPARK_CLASSPATH, but we want a method where the user does not need to modify the Spark configuration.

I would add something to the docs, but it's not obvious where to add it.

Oh, and it would be great if this could be merged in time for 0.8.1.
Merge pull request #124 from tgravescs/sparkHadoopUtilFix

Pull SparkHadoopUtil out of SparkEnv (jira SPARK-886)

Having the logic to initialize the correct SparkHadoopUtil in SparkEnv prevents it from being used until after the SparkContext is initialized.   This causes issues like https://spark-project.atlassian.net/browse/SPARK-886.  It also makes it hard to use in singleton objects.  For instance I want to use it in the security code.
Merge pull request #126 from kayousterhout/local_fix

Fixed incorrect log message in local scheduler

This change is especially relevant at the moment, because some users are seeing this failure, and the log message is misleading/incorrect (because for the tests, the max failures is set to 0, not 4)
Deduplciate Local and Cluster schedulers.

The code in LocalScheduler/LocalTaskSetManager was nearly identical
to the code in ClusterScheduler/ClusterTaskSetManager. The redundancy
made making updating the schedulers unnecessarily painful and error-
prone. This commit combines the two into a single TaskScheduler/
TaskSetManager.