Hi community, I’m new to flink and trying to learn about the concepts of flink to prepare migrating heron application to flink. I have a quick question about this flink document. (https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/concepts/stateful-stream-processing/#snapshotting-operator-state <https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/concepts/stateful-stream-processing/#snapshotting-operator-state>)
What I understood is states are stored in configured state backend which can be either task manager’s heap or rocksdb. And snapshots of checkpoint is stored by default in job manager’s heap and mostly in distributed file system. But in the document it says like below and it is confusing to me. Isn’t the second line talking about checkpoint storage or checkpoint backend? Not state backend? Thanks in advance, enjoy your weekend! "Because the state of a snapshot may be large, it is stored in a configurable state backend <https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/ops/state/state_backends/>. By default, this is the JobManager’s memory, but for production use a distributed reliable storage should be configured (such as HDFS)”
