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https://issues.apache.org/jira/browse/SPARK-9885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14693851#comment-14693851
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Cheng Lian commented on SPARK-9885:
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cc [~yhuai]
This is the issue we discussed offline.
> 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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