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https://issues.apache.org/jira/browse/SPARK-4758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-4758.
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Resolution: Won't Fix
I'm going to close this stale ticket. Please reopen if you intend to work on
it in the context of speeding up tests.
> Make metastore_db in-memory for HiveContext
> -------------------------------------------
>
> Key: SPARK-4758
> URL: https://issues.apache.org/jira/browse/SPARK-4758
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.2.0, 1.3.0
> Reporter: Jianshi Huang
> Priority: Minor
>
> HiveContext by default will create a local folder metastore_db.
> This is not very user friendly as the metastore_db will be locked by
> HiveContext and thus will block multiple Spark process to start from the same
> directory.
> I would propose adding a default hive-site.xml in conf/ with the following
> content.
> <configuration>
> <property>
> <name>javax.jdo.option.ConnectionURL</name>
> <value>jdbc:derby:memory:databaseName=metastore_db;create=true</value>
> </property>
> <property>
> <name>javax.jdo.option.ConnectionDriverName</name>
> <value>org.apache.derby.jdbc.EmbeddedDriver</value>
> </property>
> <property>
> <name>hive.metastore.warehouse.dir</name>
> <value>file://${user.dir}/hive/warehouse</value>
> </property>
> </configuration>
> jdbc:derby:memory:databaseName=metastore_db;create=true Will make sure the
> embedded derby database is created in-memory.
> Jianshi
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