[jira] [Commented] (SPARK-21063) Spark return an empty result from remote hadoop cluster

["Sean Owen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-21063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16046395#comment-16046395 ] 

Sean Owen commented on SPARK-21063:
-----------------------------------

Nothing about this suggests a Spark problem. You may not have the data you think; you may have the wrong config. This works fine on my cluster and my data.

> Spark return an empty result from remote hadoop cluster
> -------------------------------------------------------
>
>                 Key: SPARK-21063
>                 URL: https://issues.apache.org/jira/browse/SPARK-21063
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core, SQL
>    Affects Versions: 2.1.1
>            Reporter: Peter Bykov
>
> Spark returning empty result from when querying remote hadoop cluster.
> All firewall settings removed.
> Querying using JDBC working properly using hive-jdbc driver from version 1.1.1
> Code snippet is:
> {code:java}
> val spark = SparkSession.builder
>     .appName("RemoteSparkTest")
>     .master("local")
>     .getOrCreate()
> val df = spark.read
>   .option("url", "jdbc:hive2://remote.hive.local:10000/default")
>   .option("user", "user")
>   .option("password", "pass")
>   .option("dbtable", "test_table")
>   .option("driver", "org.apache.hive.jdbc.HiveDriver")
>   .format("jdbc")
>   .load()
>  
> df.show()
> {code}
> Result:
> {noformat}
> +-------------------+
> |test_table.test_col|
> +-------------------+
> +-------------------+
> {noformat}
> All manipulations like: 
> {code:java}
> df.select(*).show()
> {code}
> returns empty result too.



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