hb.get.data.frame() returns NULL

[Heiko G.]

Hello everbody,

I am just getting to know the rhbase library. 

Unfortunately the example code for hb.get.data.frame() returns NULL. What am I doing wrong, or has somebody else the same issue?

 

# create testtable
hb.new.table('testtable','x:x','y:y','z:z') #works fine

# get data frame, note the columns have ":" appended
iter <- hb.get.data.frame("testtable",start="20100105")
iter
()

I found the scan.data.frame function here: https://github.com/RevolutionAnalytics/rhbase/pull/4/files

The scan.data.frame function works for me.

When I want to do an analysis on big data, I should rather work with the rmr2 library using the experimental Hbase function, correct?

The hbase library is just for getting data in and out.

I was able to create a data.frame using data.table and hb.scan.ex().

Maybe someone can also explain if there are limitations to the filterstring parameter. I just got the SingleColumnValueFilter to work. Other tries returned a TException.