Hi all. I have a question. how can we use Mapreduce Chaining Jobs with
cassandra columnFamily input?
I use mapreduce chaining job ang it can not fined my input column family
for job1..?
Configuration conf1 = new Configuration();
Configuration conf2 = new Configuration();
Job job1
hii.. can some body please tell me how to select a column of type int or
float and print that column value in cassandra mapreduce?
every thing I read is about reading a String column form cassandra and
print the values..
;
> Did it ever work?
>
>
> 3- Is the column name in your source data files 'temperature' or
> 'temprature'? You are using the latter in your code and if it is not what
> is in the data then you might be trying to parse empty or malformed string.
>
&g
Hi all... I have a question. in the cassandra wordcount mapreduce with
cql3, I want to get a string column and a float (or double) column as map
input key and value. I mean I want to get date column of type string as key
and temprature column of type float as value. but when I println value of
temp
Hi all.. I have a column Family in cassandra and I want to use it in a
mapreduce program.. my column family contans:
stationinfo(stationid int, cityid int, name varchar, location varchar,
supervisor varchar, provinceid int, code int, date varchar, time varchar,
temprature float, humidity float, pre
Hi all.. I am pretty new to cassandra. I write a mapreduce program that
read data from my cassandra columnfamily. My column value is date type but
I import it in cassandra as varchar. when I specify my date column (or any
other column) as source column to read the dates as map function and assign
i
