~/anaconda3/envs/python3/lib/python3.6/site-packages/py4j/protocol.py in get_return_value(answer, gateway_client, target_id, name) : java.util ...
at org.elasticsearch.spark.sql.SchemaUtils$.discoverMapping(SchemaUtils.scala:91) at org.elasticsearch.spark.sql.ElasticsearchRelation.lazySchema$lzycompute ...
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