data structure in KFS to locate the chunks in distrubuted nodes

```
I am initiating a new project which is likely fit into KFS. We have a huge 
number of distributed chunk servers. I am wondering how KFS to locate a chunk. 
Does it have an interface to memcache or database? Please let me know a little 
bit more details. Thank you.


```

Original issue reported on code.google.com by `chenming...@gmail.com` on 4 Dec 2012 at 2:22
