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https://issues.apache.org/jira/browse/SPARK-22560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ran Mingxuan reopened SPARK-22560:
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My method not working. Need support.
> Must create spark session directly to connect to hive
> -----------------------------------------------------
>
> Key: SPARK-22560
> URL: https://issues.apache.org/jira/browse/SPARK-22560
> Project: Spark
> Issue Type: Bug
> Components: Java API, SQL
> Affects Versions: 2.1.0, 2.2.0
> Reporter: Ran Mingxuan
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> In a java project I have to use both JavaSparkContext and SparkSession. I
> find the order to create them affect hive connection.
> I have built a spark job like below:
> {code:java}
> // wrong code
> public void main(String[] args)
> {
> SparkConf sparkConf = new SparkConf().setAppName("testApp");
> JavaSparkContext sc = new JavaSparkContext(sparkConf);
> SparkSession spark =
> SparkSession.builder().sparkContext(sc.sc()).enableHiveSupport().getOrCreate();
> spark.sql("show databases").show();
> }
> {code}
> and with this code spark job will not be able to find hive meta-store even if
> it can discover correct warehouse.
> I have to use code like below to make things work:
> {code:java}
> // correct code
> public String main(String[] args)
> {
> SparkConf sparkConf = new SparkConf().setAppName("testApp");
> SparkSession spark =
> SparkSession.builder().config(sparkConf).enableHiveSupport().getOrCreate();
> SparkContext sparkContext = spark.sparkContext();
> JavaSparkContext sc = JavaSparkContext.fromSparkContext(sparkContext);
> spark.sql("show databases").show();
> }
> {code}
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