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Enhancements and bug fixes
The following improvements are part of RapidMiner Radoop 7.5.1.
Enhancements
- Hive connection with Kerberos and http transport mode (add transportMode=http;httpPath=/ to JDBC URL Postfix) is now supported
- Hive connection with SSL (JDBC URL Postfix contains ssl=true) together with binary transport mode (instead of http) is now supported (and no longer throws Invalid status 21 error)
- Hive connection with SSL and Kerberos (besides LDAP) is now supported (and no longer throws Subject is missing error)
- Create Permanent UDFs test now does not check for the preinstalled apply_model Hive UDF in secure environments, so the connection test can succeed even if the cluster only has Java 7 (limitations still apply, see Java version test)
Bug fixes
- BUGFIX: Fixed error (Waiting for Hive JDBC connection timed out: too many parallel JDBC connections are held.) that appeared after several (more than 8, by default) Hive connection failures.
- BUGFIX: Fixed potential NullPointerException when several concurrent Hive queries were running
- BUGFIX: Fixed warning that said Connection could not be closed: Can't getConnection after statement has been closed
- BUGFIX: Fixed NoClassDefFoundError: com/google/protobuf/ProtocolMessageEnum in Hive connection when NameNode is in safe mode