用于访问R中的Cassandra数据库的软件包 [英] Package for accessing Cassandra database in R

问题描述

我试过 RCassandra 和 RJDBC 但不幸的是，这些绑定似乎只适用于旧的Cassandra 1 。X。

解决方案

这不是真的，当前版本的 RJDBC 与Cassandra 2配合使用。 X。

下载具有C * 2.x兼容性的最新版本：cassandra-jdbc-2.1.1.jar

$但是有一个警告，你还必须下载java依赖项，并将它们放入您的JAVA类路径（MacOS：/ Library / Java / Extensions），否则在R中初始化JDBC驱动程序时，您会遇到痛苦的 .jfindClass（as.character（driverClass）[1]）中的错误：
$ b

在类路径中包含Cassandra JDBC依赖项：

从RCassandra包，现在它相比RJDBC仍然太原始。

I have tried RCassandra and RJDBC but unfortunately it seems that these bindings work only with the old Cassandra 1.x. Is there any binding for Cassandra 2.x in R language?

解决方案

This is not true, the current version of RJDBC works with Cassandra 2.X.

Download latest release, with C* 2.x compatibility : cassandra-jdbc-2.1.1.jar

However there's one caveat that you have to also download the java dependencies and put them into your JAVA ClassPath (MacOS: /Library/Java/Extensions), otherwise you would encounter the painful Error in .jfindClass(as.character(driverClass)[1]) : class not found when initializing JDBC driver in R.

Include the Cassandra JDBC dependencies in your classpath : download dependencies

As of the RCassandra package, right now it's still too primitive compared to RJDBC.

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