> Can I get data owned by a particular node and this way generate sum
> on different nodes by iterating over data from virtual nodes and later
> generate total sum by doing sum of data from all virtual nodes.
>
You're pretty much describing a map/reduce job using CqlInputFormat.
Hi Gaurav,
I recommend you just run a MapReduce job for this computation.
Alternatively, you can look at the code for the C* MapReduce input format:
https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/hadoop/cql3/CqlInputFormat.java
That should give you what you need to
Hi,
I have a cassandra cluster of 3 nodes holding around 300 million rows
of items. I have a replication factor of 3 with read/write consistency as
Quorum. I want to scan all rows of database to generate sum of items having
value "available" in column name state and value "batch1" in column na
