Cheng Lian created SPARK-9885:
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Summary: IsolatedClientLoader ignores shared prefixes and barrier
prefixes when "spark.sql.hive.metastore.jars" is set to "maven"
Key: SPARK-9885
URL: https://issues.apache.org/jira/browse/SPARK-9885
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.4.1, 1.5.0
Reporter: Cheng Lian
Priority: Critical
I have a local Hive 0.13.1 metastore backed by MySQL. MySQL JDBC connector is
put under {{$JAVA_HOME/jre/lib/ext}}. With the following {{spark-defaults.conf}}
{noformat}
spark.sql.hive.metastore.version 0.13.1
spark.sql.hive.metastore.jars maven
{noformat}
Spark shell fails to create {{HiveContext}} because MySQL JDBC driver couldn't
be properly loaded.
This is probably because {{IsolatedClientLoader}} ignores shared prefixes and
barrier prefixes when {{spark.sql.hive.metastore.jars}} is set to {{maven}}.
See [this
line|https://github.com/apache/spark/blob/v1.4.1/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/IsolatedClientLoader.scala#L45].
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