dhtcrawler is a DHT crawler written in erlang. It can join a DHT network and crawl many P2P torrents. The program save all torrent info into database and provide an http interface to search a torrent by a keyword.

• Download mongodb and start it with text search, i.e:

    mongod --dbpath db --setParameter textSearchEnabled=true
  

• Download dhtcrawler source code

• Use rebar to download and install all dependent libraries

    rebar get-deps
  

• compile

    rebar compile
  

• starting the erlang shell with the ebin path added

    erl -pa ebin
  

• start dhtcrawler

    crawler_app:start()
  

• start the http front-end

    crawler_http:start().
  

• Open a web browser and point to localhost:8000/index.html

see priv/dhtcrawler.config.

NOTE, when you change node_count value in dhtcrawler.config, you'd better delete all files saved in dhtstate directory.