kdb+ 数据恢复

Contents
1 Introduction ......................................................................................................................................................... 2
2 What does a kdb+ database look like on disk? .................................................................................................... 4
3 What is failover? .................................................................................................................................................. 6
4 What does HOT-HOT mean?................................................................................................................................ 6
5 What to do when... .............................................................................................................................................. 8
5.1 ... a real-time database goes down ...................................................................................................................... 8
5.2 ... a historical database fails to load..................................................................................................................... 9
5.3 … there is a tickerplant failure ........................................................................................................................... 10
5.4 … there is a hardware failure ............................................................................................................................. 11
5.5 … network connection issues ............................................................................................................................. 11
6 Data reconciliation and synchronization ........................................................................................................... 11
7 What is the best configuration for high-availability? ........................................................................................ 12
8 How does the system recover? ......................................................................................................................... 12
9 Additional kdb+ features for disaster recovery ................................................................................................. 13
10 Control for Kx ..................................................................................................................................................... 13
11 Conclusion ......................................................................................................................................................... 13
Appendix .................................................................................................................................................................. 15