README

================================================================
			nessDB v1.7
		Copyright (C) 2011 BohuTANG
================================================================	

  Key Features
  =============
  * Bloom filters for record presence detection 
  * Level-LRU for hot data caching,improve Random-Read 
  * Distributable B+Tree-Structured-Indexes 
  * Background IO for data flush to disk
  * Support range queries

  Directory Tree
  ==================
  ./
  ./src/ 	- sources of nessDB
  ./uint-test/	- unit-test cases
  ./BENCHMARK	- benchmark results of nessDB
  ./LEVEL-LRU	- nessDB's level-lru doc
  ./TODO	- nessDB's todo list


  Interface
  ==========
    * db_init(int bufferpool_size,int isbgsync,uint64_t *sum)
    * db_get(const char *key)
    * db_get_range(const char *begin,const char *end,struct nobj *obj,int *retcount)
    * db_add(const char *key,const char *value)
    * db_update(const char *key,const char *value)
    * db_remove(const char *key)

    Very simple.

 
  How to do TEST
  ==============
	a, $cd src
	b, $make
	c, $./nessdb_bench add

	If you want to remove all indexes and datas,please use "$make cleanall" command.
	

nessDB was written by BohuTANG.You can contact me by e-mail <overred.shuttler at gmail dot com>.
Thanks.

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