snapshot.go
func (r *Raft) shouldSnapshot() bool {
	// Check the last snapshot index
	lastSnap, _ := r.getLastSnapshot()

	// Check the last log index
	lastIdx, err := r.logs.LastIndex()
	if err != nil {
		r.logger.Error(fmt.Sprintf("Failed to get last log index: %v", err))
		return false
	}

	// Compare the delta to the threshold
	delta := lastIdx - lastSnap
	return delta >= r.conf.SnapshotThreshold
}
func (r *Raft) shouldSnapshot() bool {
	// Check the last snapshot index
	lastSnap, _ := r.getLastSnapshot()

	// Check the last log index
	lastIdx, err := r.logs.LastIndex()
	if err != nil {
		r.logger.Error(fmt.Sprintf("Failed to get last log index: %v", err))
		return false
	}

	// Compare the delta to the threshold
	delta := lastIdx - lastSnap
	return delta >= r.conf.SnapshotThreshold
}
// shouldSnapshot checks if we meet the conditions to take
// a new snapshot.