While working with some data in Hive recently using the Oracle R Connectors for Hadoop (ORCH), I tried to use the ore.make.names function (of package OREbase ). The function creates valid column names for ore.frame objects. Here is a reproducible example, copied straight from the function documentation: Experimenting a little, I discovered that ore.make.names becomes functional after executing ore.connect. Indeed, …
Oracle R Enterprise issues in Oracle Big Data Lite VM 4.1.0
In the previous post, we examined some configuration issues with Cloudera Manager and Hadoop services in the latest release of Oracle Big Data Lite VM (4.1.0). In this post we report issues with Oracle R Enterprise, and the remedies we applied. It turns out that if we load the ORE package in R, we subsequently cannot use the help system …
Cloudera Manager configuration issues in Oracle Big Data Lite VM 4.1.0
Oracle has recently announced the release of a new version (4.1.0) of its Big Data Lite VM. Compared to the previous release (4.0.1), we now have more recent versions of Oracle Enterprise Linux (6.5), Oracle NoSQL database (3.2.5), Cloudera distribution of Apache Hadoop (CDH 5.3.0) and Cloudera Manager (5.3.0). The new version of CDH, by itself, also brings forward several …