FileBasedStateStore¶

FileBasedStateStore is a QuorumStateStore that writes election state to a file.

Creating Instance¶

FileBasedStateStore takes the following to be created:

• State File

FileBasedStateStore is created when:

• KafkaRaftManager is requested to build a RaftClient

State File¶

FileBasedStateStore is given a state file when created.

The state file is quorum-state file under the data directory (of KafkaRaftManager).

The state file is loaded in readElectionState and updated in writeElectionState.

stateFile is deleted in clear.

readElectionState¶

ElectionState readElectionState()

readElectionState is null (undefined) when stateFile does not exist.