diff options
Diffstat (limited to 'examples/src')
| -rw-r--r-- | examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala b/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala index 59bdfa09ad..d3bb7e4398 100644 --- a/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala +++ b/examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala @@ -37,10 +37,13 @@ object HiveFromSpark { def main(args: Array[String]) { val sparkConf = new SparkConf().setAppName("HiveFromSpark") - // A hive context adds support for finding tables in the MetaStore and writing queries - // using HiveQL. Users who do not have an existing Hive deployment can still create a - // HiveContext. When not configured by the hive-site.xml, the context automatically - // creates metastore_db and warehouse in the current directory. + // When working with Hive, one must instantiate `SparkSession` with Hive support, including + // connectivity to a persistent Hive metastore, support for Hive serdes, and Hive user-defined + // functions. Users who do not have an existing Hive deployment can still enable Hive support. + // When not configured by the hive-site.xml, the context automatically creates `metastore_db` + // in the current directory and creates a directory configured by `spark.sql.warehouse.dir`, + // which defaults to the directory `spark-warehouse` in the current directory that the spark + // application is started. val spark = SparkSession.builder .config(sparkConf) .enableHiveSupport() |