spark
spark-shell启动：
# spark-shell
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel).
Welcome to
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/___/ .__/\_,_/_/ /_/\_\ version 1.6.0
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Using Scala version 2.10.5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_67)
Type in expressions to have them evaluated.
Type :help for more information.
Spark context available as sc (master = yarn-client, app id = application_1499848519319_1193).
17/09/20 10:08:04 WARN metastore.ObjectStore: Version information not found in metastore. hive.metastore.schema.verification is not enabled so recording the schema version 1.1.0
17/09/20 10:08:05 WARN metastore.ObjectStore: Failed to get database default, returning NoSuchObjectException
17/09/20 10:08:51 WARN metastore.ObjectStore: Version information not found in metastore. hive.metastore.schema.verification is not enabled so recording the schema version 1.1.0
17/09/20 10:08:53 WARN metastore.ObjectStore: Failed to get database default, returning NoSuchObjectException
SQL context available as sqlContext.
scala>
退出：
scala> exit warning: there were 1 deprecation warning(s); re-run with -deprecation for details