Nick Dimiduk created SPARK-27597:
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Summary: RuntimeConfig should be serializable
Key: SPARK-27597
URL: https://issues.apache.org/jira/browse/SPARK-27597
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.1
Reporter: Nick Dimiduk
When implementing a UDF or similar, it's quite surprising to see that the
{{SparkSession}} is {{Serializable}} but {{RuntimeConf}} is not. When modeling
UDFs in an object-oriented way, this leads to quite a surprise, an ugly NPE
from the {{call}} site.
{noformat}
Caused by: java.lang.NullPointerException
at
org.apache.spark.sql.SparkSession.sessionState$lzycompute(SparkSession.scala:143)
at org.apache.spark.sql.SparkSession.sessionState(SparkSession.scala:141)
at org.apache.spark.sql.SparkSession.conf$lzycompute(SparkSession.scala:170)
at org.apache.spark.sql.SparkSession.conf(SparkSession.scala:170)
...{noformat}
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