TODO List

[lylei]

1. [x] Logging.h按时间&大小切log Logging.h switch file when the file reach a size limit
2. [ ] 多盘负载均衡 Load balance between disks
3. [x] 异构机器调度 Load balance between different server type(disk number, etc)
4. [ ] 机架感知 rack recognize
5. [x] chunkserver停机dump数据 chunk server should close opened files before shutdown
6. [x] sdk端sync支持超时 sdk support sync timeout
7. [ ] 副本恢复与gc逻辑使用后台扫描触发 background gc and replica recover strategy
8. [x] SDK里File结构的生命周期管理 Managing file cycle for files in sdk
9. [x] 统一SDK里两个CloseFile逻辑 There are tow CloseFile in SDK.
10. [ ] webservice实现剥离出nameserver_impl Separate web service from Nameserver_impl
11. [x] 错误码，人性化报错 Make error code readable
12. [x] 读写文件优先选择Client本地副本 Read/write local copy first
13. [ ] Nameserver high availablity
14. [ ] 文件锁 File lock
15. [ ] 拆分metaserver Separate Metaserver from Nameserver
16. [ ] Fuse LowLevel implementation
17. [ ] 大文件分块 Supporting huge file
18. [ ] 多用户 Multi user support. Access & quota control
19. [ ] 文档完善 Documentation
20. [ ] 测试完善 Unit test, functional test, integration test
21. [ ] docker 支持 Docker image
22. [ ] benchmark
23. [ ] 单CS挂机不影响写入 Single CS down should not infect writing
24. [ ] Load Balance: for new blocks & old blocks
25. [ ] SDK lease
26. [ ] RS encode