Fresh Install of 7.3.2 Crashes Creating Template

[hackdefendr (Jeff Singleton)]

I hate starting over from scratch, but upgrading from 6.8.3 to 7.3.2 did not go well. So I removed and purged my whole ELK system. I still have all my JSON logs, so I can import them without any issue.

With that said, my fresh install is crashing in the same place the upgrade did. This leads me to believe there is a problem with my configuration. I have run out of ideas and need the communities help to determine if this is a bug and where.

logstash-stdout: https://pastebin.com/0yRWwH9K

logstash-stderr: https://pastebin.com/1xQEADsd

My config:

input {
       file {
              path => ["/home/cowrie/cowrie/var/log/cowrie/cowrie.json"]
              codec => json
              type => "cowrie"
       }
       tcp {
              port => 3333
              type => "cowrie"
       }
}

filter {
    if [type] == "cowrie" {
        date {
            match => [ "timestamp", "ISO8601" ]
        }
        if [src_ip]  {
            mutate {
                add_field => { "src_host" => "%{src_ip}" }
            }
            dns {
                reverse => [ "src_host" ]
                nameserver => [ "10.71.1.1", "1.1.1.1" ]
                action => "replace"
                hit_cache_size => 4096
                hit_cache_ttl => 900
                failed_cache_size => 512
                failed_cache_ttl => 900
            }
                        geoip {
                                database => "/var/opt/logstash/vendor/geoip/GeoLite2-City.mmdb"
                        source => "src_ip"
                        target => "geoip"
                add_field => [ "[geoip][coordinates]", "%{[geoip][longitude]}" ]
                add_field => [ "[geoip][coordinates]", "%{[geoip][latitude]}"  ]
                }
                        mutate {
                        convert => [ "[geoip][coordinates]", "float" ]
                }
        }
    }
}

output {
    if [type] == "cowrie" {
        elasticsearch {
            hosts => ["localhost:9200"]
        }
        file {
            path => "/var/log/cowrie-logstash.log"
            codec => json
        }
    }
}

I'm hoping someone can spot why this is happening. Thank-you!

[hackdefendr (Jeff Singleton)]

OMG. This whole thing was due to unnecessary configuration options in elasticsearch.yml. This whole time my local, single node ES cluster wasn't even starting all the wat. I removed everything but the very very basic configuration for both elasticsearch and logstash, now everything is running properly.