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Posted to issues@spark.apache.org by "Saif Addin Ellafi (JIRA)" <ji...@apache.org> on 2016/09/29 20:55:20 UTC
[jira] [Updated] (SPARK-17735) Cannot call sqlContext inside udf
[ https://issues.apache.org/jira/browse/SPARK-17735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Saif Addin Ellafi updated SPARK-17735:
--------------------------------------
Description:
Hello, I know it is a strange use case but I just wanted to append is cache to hive tables and turned out into this
def inCacheUdf = org.apache.spark.sql.functions.udf {name: String => sqlContext.isCached(name)}
val ts = sqlContext.tables
ts.withColumn("foo", inCacheUdf(ts.col("tableName"))).show
.. will throw a Null Pointer Exception.
I am not sure, since in my program I was getting:
A master url must be set in your configuration
or NullPointer at getConf as well.
Thoughts?
was:
Hello, I know it is a strange use case but I just wanted to append is cache to hive tables and turned out into this
def inCacheUdf = org.apache.spark.sql.functions.udf {name: String => sqlContext.isCached(name)}
val ts = sqlContext.tables
ts.withColumn("foo", inCacheUdf(ts.col("tableName"))).show
.. will throw a Null Pointer Exception.
I am not sure, since in my program I was getting:
A master url must be set in your configuration
or NullPointer a getConf as well.
Thoughts?
> Cannot call sqlContext inside udf
> ---------------------------------
>
> Key: SPARK-17735
> URL: https://issues.apache.org/jira/browse/SPARK-17735
> Project: Spark
> Issue Type: Bug
> Components: Spark Core, SQL
> Affects Versions: 1.6.0
> Environment: Linux
> Reporter: Saif Addin Ellafi
> Priority: Minor
>
> Hello, I know it is a strange use case but I just wanted to append is cache to hive tables and turned out into this
> def inCacheUdf = org.apache.spark.sql.functions.udf {name: String => sqlContext.isCached(name)}
> val ts = sqlContext.tables
> ts.withColumn("foo", inCacheUdf(ts.col("tableName"))).show
> .. will throw a Null Pointer Exception.
> I am not sure, since in my program I was getting:
> A master url must be set in your configuration
> or NullPointer at getConf as well.
> Thoughts?
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