用于在R中访问Cassandra数据库的软件包
[英]Package for accessing Cassandra database in R
问题描述
I have tried RCassandra and RJDBC but unfortunately it seems that these bindings work only with the old Cassandra 1.x. 
我已经尝试了RCassandra和RJDBC，但不幸的是，这些绑定似乎仅适用于旧的Cassandra1.x。 Is there any binding for Cassandra 2.x in R language? R语言中的Cassandra 2.x是否有绑定？
1 个解决方案
解决方案1
1 2015-02-02 07:03:26
This is not true, the current version of RJDBC works with Cassandra 2.X. 这是不正确的，当前版本的RJDBC可与Cassandra 2.X一起使用。
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. 但是有一个警告，您还必须下载Java依赖项并将它们放入JAVA ClassPath（MacOS：/ Library / Java / Extensions）中，否则您将Error in .jfindClass(as.character(driverClass)[1]) : class not found遇到痛苦的Error in .jfindClass(as.character(driverClass)[1]) : class not found在R中初始化JDBC驱动程序时Error in .jfindClass(as.character(driverClass)[1]) : class not found 。
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. 从RCassandra包开始，与RJDBC相比，它现在仍然太原始了。
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