Clarification on state backend parameters

Posted by Mohit Anchlia on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Clarification-on-state-backend-parameters-tp11419.html

Trying to understand these 3 parameters:

state.backend

state.backend.fs.checkpointdir

state.backend.rocksdb.checkpointdir

state.checkpoints.dir

As I understand stream of data and the state of operators are 2 different concepts and that both need to be checkpointed. I am bit confused about the purpose of these parameters and their applicability.