There seems to be some major bugs in Apache Spark 2.3.x and its integration with Hadoop 3.0, which are still unresolved in Apache Spark JIRA issues. Are these issues resolved by Hortonworks team, or do they still exist in HDP 3.0?
List of unresolved issues with NO Fixed versions
Nothing is mention in HDP 3.0 release notes regarding these issues, Not even in the KNOWN ISSUES section. hdp-release-notes.pdf