Probleme input UDP , no index, no DATA

[pierre1 (passat)]

my configuration :

input {
  udp {
    port => 9556
    codec => netflow {
      versions => [5]
    }
    type => "Netflow"
  }
}

output {
    if ( [type] == "Netflow" ) {
        elasticsearch {
                hosts => ["localhost:9200"]
                index => "netflow-%{+YYYY.MM.dd}"
          }
    }     
}

netstat -au :
udp6 0 0 [::]:9556 [::]:*

i see UDP6 but my flow is for ipv4

With TCPDUMP i see my netflow flow
i don't understand , why i have a index in kibana but 0 DATA

[pierhugues (Pier-Hugues Pellerin)]

Hello Pierre,

I think we could start by checking if any events are correctly collected by Logstash, we can do this by adding a stdout and a rubydebug codec. If you start logstash from the command line with Logstash -f ./myconfig you should see traces in the terminal if any netflow event reach the output.

output {
    if ( [type] == "Netflow" ) {
        stdout {
          codec => rubydebug
        }
        elasticsearch {
                hosts => ["localhost:9200"]
                index => "netflow-%{+YYYY.MM.dd}"
          }

    }     
}