Blode is a simple, powerful syslog-like event broadcast daemon

example visualization (SparkFun MySQL queries/sec)

example visualization (SparkFun nginx/memcached/mysql)

It works like this

  +--------+  +--------+  +--------+
  |  php   |  |  ruby  |  | syslog |    <-- event sources
  +--------+  +--------+  +--------+
       \           |          /
        \          |         /        
         \         |        /        
          \        |       /         
        +--------------------+          
        |    blode server    |          <-- event listener/broadcaster
        +--------------------+
                   |
                  / \
                 /   \
                /     \
               /       \
              /         \
      +---------+     +----------+
      | browser |     | database |       <-- event stream clients
      +---------+     +----------+

Events are pushed from any source via tcp/udp/http to the blode listener. Any event received by blode is then pushed out to any listening clients. Clients can obverve the broadcast via a websocket, tcp, or udp connection.

Requirements

node.js >= 0.4.12

npm curl http://npmjs.org/install.sh | sudo sh

Installation

git clone git://github.com/benlemasurier/blode.git
cd blode
sudo npm install socket.io

start blode daemon

$ nohup NODE_ENV=production node blode.js &

start logging test events

$ cd test
$ ./ping

listen to events

# (from another terminal)
$ cd ~/blode/test
$ ./example_netcat_client.sh