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https://issues.apache.org/jira/browse/SPARK-23872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786454#comment-16786454
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Udbhav Agrawal commented on SPARK-23872:
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Hi [~chelsa] , you have to close the spark_1 session to clear the active
sparkcontext, otherwise new configuration won't be loaded.
So call spark_1.stop()
> Can not connect to another metastore uri using two Spark sessions
> -----------------------------------------------------------------
>
> Key: SPARK-23872
> URL: https://issues.apache.org/jira/browse/SPARK-23872
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Environment: OS :CentOS release 6.8 (Final)
> JAVA : build 1.8.0_101-b13
> SPARK : 2.3.0
>
> Reporter: Chan Min Park
> Priority: Major
>
> In Spark 2.1.0, two sessions worked normally In 2.3.0, the first session
> metasore information is used when the second session is run
> $################## Run Source Code $##################
> val spark_1 = SparkSession.builder()
> .enableHiveSupport()
> .config("hive.metastore.uris", "thrift://HOST_A:9083")
> .getOrCreate()
> spark_1.sql("SELECT A_FIELD FROM TABLE_A").show()
> SparkSession.clearActiveSession()
> SparkSession.clearDefaultSession()
> val spark_2 = SparkSession.builder()
> .enableHiveSupport()
> .config("hive.metastore.uris", "thrift://HOST_B:9083")
> .getOrCreate()
> spark_2.sql("SELECT B_FIELD FROM TABLE_B").show()
> $################## Run info result in spark 2.1.0 $##################
> ......
> INFO metastore: Trying to connect to metastore with URI
> thrift://*{color:#d04437}HOST_A{color}*:9083
> ......
> INFO DAGScheduler: Job 3 finished: show at SparkHDFSTest.scala:20, took
> 0.807905 s
> +------------ +
> / A_FIELD /
> ---------------
> / A /
> ----------------
> ......
> INFO metastore: Trying to connect to metastore with URI
> thrift://*{color:#d04437}HOST_B{color}*:9083
> INFO DAGScheduler: Job 3 finished: show at SparkHDFSTest.scala:20, took
> 0.807905 s
> +------------ +
> / B_FIELD /
> ---------------
> / B /
> ----------------
> ......
> $################## Run info result in spark 2.3.0 $##################
> ......
> INFO metastore: Trying to connect to metastore with URI
> thrift://*{color:#d04437}HOST_A{color}*:9083
> ......
> INFO DAGScheduler: Job 3 finished: show at SparkHDFSTest.scala:20, took
> 0.807905 s
> +------------ +
> / A_FIELD /
> ---------------
> / A /
> ----------------
> ......
> INFO metastore: Trying to connect to metastore with URI
> thrift://*{color:#d04437}HOST_A{color}*:9083
> ......
> Exception in thread "main" org.apache.spark.sql.AnalysisException: Table or
> view not found: `default`.`TABLE_B`; line 1 pos 19;
> **************************************************************************************
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