[
https://issues.apache.org/jira/browse/SPARK-26794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wenchen Fan resolved SPARK-26794.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 23709
[https://github.com/apache/spark/pull/23709]
> SparkSession enableHiveSupport does not point to hive but in-memory while the
> SparkContext exists
> -------------------------------------------------------------------------------------------------
>
> Key: SPARK-26794
> URL: https://issues.apache.org/jira/browse/SPARK-26794
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.2
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
> Fix For: 3.0.0
>
>
> {code:java}
> public class SqlDemo
> {
> public static void main(final String[] args) throws Exception {
>
> SparkConf conf = new SparkConf().setAppName("spark-sql-demo");
> JavaSparkContext sc = new JavaSparkContext(conf);
> SparkSession ss =
> SparkSession.builder().enableHiveSupport().getOrCreate();
> ss.sql("show databases").show();
> }
>
> }
> }
> {code}
> Before SPARK-20946, the demo above point to the right hive metastore if the
> hive-site.xml is present. But now it can only point to the default in-memory
> one.
> Catalog is now as a variable shared across SparkSessions, it is instantiated
> with SparkContext's conf. After SPARK-20946, Session level configs are not
> pass to SparkContext's conf anymore, so the enableHiveSupport API takes no
> affect on the catalog instance.
> You can set spark.sql.catalogImplementation=hive application wide to solve
> the problem, or never create a sc before you call
> SparkSession.builder().enableHiveSupport().getOrCreate()
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