cassandra-jdbc

Let assume 10 devices(dev01,dev02,dev03..etc). It send data with some interval time,we collect those data,so our data schema is dev01 :int signalname :string signaltime :date/time[with YY-MM-DD HHMMSS.mm] Extradata :String I want to push data into cassandra ,which way is best to store those data? My Query is Like , 1 Need to retrive device based current day data,or with some date range? 2 5 Device current day data? I am not sure the following way to store data into cassadra is best model Standard columnfamily Name:signalname row key :dev01 columnname :timeseries(20120801124204)[YYMMDD HHMMSS]

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? 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