Corner-case errors are not surfaced outside of the crawl_tables task run. These errors are rather rare conditions, but still it's good to surface them somewhere:
java.lang.IllegalArgumentException: Error: type expected at the position 34508 ...
org.apache.spark.SparkException: [CANNOT_RECOGNIZE_HIVE_TYPE] Cannot recognize hive type string: ...
java.lang.UnsupportedOperationException: Parquet does not support timestamp. See HIVE-6384
java.lang.RuntimeException: MetaException(message:java.lang.ClassNotFoundException Class org.apache.hadoop.hive.serde2.OpenCSVSerde not found)
