protected long snapshotIndex = -1;
protected long snapshotTerm = -1;
// to be used for rollback during save snapshot failure
protected ArrayList<ReplicatedLogEntry> snapshottedJournal;
protected long snapshotIndex = -1;
protected long snapshotTerm = -1;
// to be used for rollback during save snapshot failure
protected ArrayList<ReplicatedLogEntry> snapshottedJournal;