I want to read records from Aerospike DB using Secondary index.
Could you please if its possible to read records using secondary index from a particular node ( rather than from all nodes --- Default Behavior )
I am looking to do this operation in Java. Could you please point appropriate document or source code for the same.
Aerospike distributes all your records evenly across all nodes of your cluster. Lets say you have a 3 node cluster with 6 records as below and possible distribution by nodes shown for argument:
id - age - name (On node)
1 - 30 - Jack ( on n1)
2 - 34 - Jill (on n3)
3 - 31 - Bill (on n1)
4 - 29 - Jane (on n2)
5 - 40 - Tim (on n3)
6 - 20 - Nik (on n2)
and you build a secondary index on age - and ask for all records where age between 28 and 32 -- the secondary index query will be sent to each node, and each node will send the records that match back to client. So, you can't issue a SI query and say find me all records where age is between 28 and 32 just on node n1. No can do - no such feature in Aerospike.