I'm new to Aerospike.. How to create a New Namespace and new set.. I have gone thru some docs and videos but I didn't find any useful thing. i have read somewhere which is 5 years old blog, i.e. thru config file only we can create namespace and set. is that true or any other commands are there.
In order to create a namespace you'll need to modify the aerospike.conf file since namespaces cannot be created dynamically.
By default the "test" namespace is included in the aerospike.conf file (located in /etc/aerospike/aerospike.conf).
You can read more about Aerospike configuration and Namespace configuration.
Sets can be "created" dynamically (it is a logical hierarchy) so you don't have to "create" sets you can just specify the set you want to write/update/delete/read from in the operation.
If you are new to Aerospike I suggest to use the Interactive Tutorials (currently available for Java, Python and Spark) or the Client Libraries documentation to see some code examples.