Installation LEK Cluster

The structure of cluster like this:

We used four VM:

A  10.32.xxx.213   ubuntu12.04

B  10.32.xxx.214   ubuntu12.04

C  10.13.xxx.85    ubuntu14.04

D  10.32.xxx.160   ubuntu14.04

Building up this cluster is not complicated: same as installing single node LEK, just add a Redis which act as a broker!

We use redis 3.0.2, you can install it like this:

$ wget http://download.redis.io/releases/redis-3.0.2.tar.gz
$ tar xzf redis-3.0.2.tar.gz
$ cd redis-3.0.2
$ make //build
$ make install  //install
$ cd utils
$ ./install_server.sh //The script will ask you a few questions and will setup everything you need to run Redis properly as a background daemon that will start again on system reboots.

Now, everything has installed. We can run this cluster and just make the kibana get data from shipper.

In shipper B and D,  the logstash’s  configuration file:

input {
   file {
      path => ['/var/log/syslog', '/var/log/kern.log']
      type => "syslog"
     }
}
output {
   redis {
   data_type => "channel"
   key =>  "logstash-*"
   host => "10.32.xxx.213"
   port => 6379
}

In A, the logstash’s configuration file:

input {
  redis {
        data_type => "pattern_channel"
        key => "logstash-*"
        host => "10.32.xxx.213"
        port => "6379"
  }
}
output {
  stdout { }
  elasticsearch {
        host => "10.13.xxx.85"
        protocol => "http"
  }
}

After all these, then yon can run your cluster smoothly.