I am trying to configure production-ready Zookeeper data backup.
As I learned from different sources, Zookeeper snapshot file is not enough to guarantee a return to a previous state. In fact, the snapshot file may not even represent the state of the tree at any point in time (see corresponding stackoverflow ticket answer).
So to make the consistent zk data storage backup (to store it on a cloud or elsewhere), I need to copy snapshots with transaction logs. The question is: how can I copy transaction log files while zookeeper is active and makes hundreds of transactions a second? Won't the files be corrupted?
What other practices can be used in this case?
