impossible d'obtenir la base de données par défaut de retour NoSuchObjectException

Quand je commence spark-je obtenir ce avertissements:

Using Scala version 2.10.5 (OpenJDK 64-Bit Server VM, Java 1.8.0_77)
Type in expressions to have them evaluated.
Type :help for more information.
Spark context available as sc.
16/04/03 15:07:31 WARN Connection: BoneCP specified but not present in CLASSPATH (or one of dependencies)
16/04/03 15:07:31 WARN Connection: BoneCP specified but not present in CLASSPATH (or one of dependencies)
16/04/03 15:07:39 WARN ObjectStore: Version information not found in metastore. hive.metastore.schema.verification is not enabled so recording the schema version 1.2.0
16/04/03 15:07:39 WARN ObjectStore: Failed to get database default, returning NoSuchObjectException
SQL context available as sqlContext.

scala> 

Et aussi lorsque j'exécute cette commande: var sqlContext = new org.apache.spark.sql.hive.HiveContext(sc)

- Je obtenir cet avertissement:

scala> var sqlContext = new org.apache.spark.sql.hive.HiveContext(sc)
16/04/03 15:04:31 WARN Connection: BoneCP specified but not present in CLASSPATH (or one of dependencies)
16/04/03 15:04:31 WARN Connection: BoneCP specified but not present in CLASSPATH (or one of dependencies)
16/04/03 15:04:35 WARN ObjectStore: Failed to get database default, returning NoSuchObjectException
sqlContext: org.apache.spark.sql.hive.HiveContext = org.apache.spark.sql.hive.HiveContext@13453610

Donc ma question est de savoir si vous savez pourquoi cet avertissement est passe et si, bien que l'avertissement qui se passe, la commande var sqlContext = new org.apache.spark.sql.hive.HiveContext(sc) son travail correctement?

InformationsquelleAutor codin | 2016-04-03