What are possible reasons for receiving TimeoutException: Futures timed out after [n seconds] when working with Spark [duplicate]

Answer 1

If you enabled dynamicAllocation, try to disable this configuration (spark.dynamicAllocation.enabled=false). You are able to set this spark configuration under conf/spark-defaults.conf, as --conf or within the code.

See also:

https://issues.apache.org/jira/browse/SPARK-22618

https://issues.apache.org/jira/browse/SPARK-23806