Spark 2.1.0-1808 (EEP 3.0.4 and EEP 4.1.2) Release Notes
This section provides reference information, including new features, patches, and known issues for Spark 2.1.0-1808.
The notes below relate specifically to the MapR Distribution for Apache Hadoop. You may also be interested in the open-source Spark 2.1.0 Release Notes.
These release notes contain only MapR-specific information and are not necessarily cumulative in nature. For information about how to use the release notes, see Ecosystem Component Release Notes.
| Spark Version | 2.1.0 |
| Release Date | September 2018 |
| MapR Version Interoperability | See EEP Components and OS Support. |
| Source on GitHub | https://github.com/mapr/spark/tree/2.1.0-mapr-1808 |
| GitHub Release Tag | 2.1.0-mapr-1808 |
| Maven Artifacts | https://repository.mapr.com/maven/ |
| Package Names | Navigate to https://package.ezmeral.hpe.com/releases/MEP/ and select your EEP and OS to view the list of package names. |
- Spark 2.2 can connect to Hive Metastore 2.1. But, features of Hive added after Hive 1.2 are not supported by Spark.
- Spark Yarn and Standalone modes are supported only on clusters in MRv2 (YARN) mode. They are not supported on clusters in MRv1 (classic) mode.
Hive Support
This version of Spark supports integration with Hive. However, note the following exceptions:
- Hive-on-Spark is not supported.
- Spark-SQL is supported, but it is not fully compatible with Hive. For details, see the Apache Spark documentation and the MapR Spark documentation.
Fixes
This MapR release includes the following new fixes since the latest MapR Spark 2.2.1 release. For details, refer to the commit log for this project in GitHub.
| GitHub Commit | Date (YYYY-MM-DD) | Comment |
|---|---|---|
| 6fb5a8d | 2018/04/25 | [MAPR-31202] Spark History Server bug fixed. Redundant 'jsr311-api' artifact excluded |
| 40d7890 | 2018/05/02 | [MAPR-31274] Spark SQL Thrift Server cannot access hive-maprdbjson table |
| 244a07c | 2018/05/26 | MapR [SPARK-226] Spark - pySpark Security Vulnerability |
| 43d2314 | 2018/05/30 |
MapR [SPARK-214] Hive-2.1 poperties can't be read from a hive-site.xml as Spark uses Hive-1.2 |
| a6b5a92 | 2018/06/13 | [MAPR-31632] RM UI showing broken page for Spark jobs |
| 232dbad | 2018/07/18 | [WEBUI] Avoid possibility of script in query param keys |
| 455a796 | 2018/08/02 | MapR [SPARK-300] Update Hive dependencies for spark 2.1.0 |
| ec8bd03 | 2018/08/08 | [SPARK-302] Local privilege escalation |
| 2a1db27 | 2018/08/28 | [SPARK-16986][WEB-UI] Converter Started, Completed and Last Updated to client time zone in history page |
| 55195ae | 2018/08/30 | MapR [SPARK-279] Cannot connect to Spark Thrift Server with new Spark and Hive packages |
Known Issues
- You cannot connect to a Spark Thrift Server on a Kerberos-secured cluster as Kerberos and SSL are not compatible.
Workaround: Modify the
hive.server2.use.SSLtofalsein thehive-site.xmlfile. - When you install a secure (MapR-SASL) cluster using the MapR Installer, the
configure.shscript configures Hive after Spark. As a result, Spark copies the wronghive-site.xmlfile and the Spark and Hive integration may not work correctly and you may have problems connecting to Spark beeline.Workaround: Check the
hive-site.xmlfile in the Spark home directory, and, if needed, rerun theconfigure.shscript or copy thehive-site.xmlfile from your Hive home directory and restart services. - Spark versions up to and including 2.3.0 have the following security vulnerability:
Resolved Issues
None.