通过tcp向logstash发送数据

Question

input {
  tcp {
        port => 5400
        codec => json
  }
}
filter{
  json{
    source => "message"
  }
}
output {
   elasticsearch {
      host => "localhost"
      protocol => "http"
      index => "someIndex"
   }
}

Socket socket = new Socket("logstash-hostname", 5400);
DataOutputStream os = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));
os.writeBytes("{\"message\": {\"someField\":\"someValue\"} }");
os.flush();
socket.close();

Answer 1

问题是您的数据已经在输入上反序列化了，而您正在尝试在筛选器上再次反序列化它。只需删除json过滤器。

以下是我如何重新创建您的场景：

# the json input
root@monitoring:~# cat tmp.json 
{"message":{"someField":"someValue"}}


# the logstash configuration file
root@monitoring:~# cat /etc/logstash/conf.d/test.conf
input {
  tcp {
    port => 5400
    codec => json
  }
}

filter{
}

output {
   stdout {
     codec => rubydebug
   }
}


# starting the logstash server
/opt/logstash/bin/logstash -f /etc/logstash/conf.d/test.conf


# sending the json to logstash with netcat
nc localhost 5400 <  tmp.json

# the logstash output via stdout
{
       "message" => {
        "someField" => "someValue"
    },
      "@version" => "1",
    "@timestamp" => "2016-02-02T13:31:18.703Z",
          "host" => "0:0:0:0:0:0:0:1",
          "port" => 56812
}

希望有帮助,