Logstash "A plugin had an unrecoverable" error how to fix it? - elasticsearch

Question

I'm trying to push the data into elasticsearch which comes from kafka topic with Logstash but having this problem when I start my logstash
error code: A plugin had an unrecoverable error
how to fix this? The config file is below.
`input{
kafka{
bootstrap_servers =>"localhosts:9092"
topics => ["cars"]
}
}
filter{
csv {
separator =>","
columns => [ "maker", "model", "mileage", "manufacture_year", "engine_displacement", "engine_power", "body_type", "color_slug", "stk_year", "transmission", "door_count", "seat_count", "fuel_type", "date_created", "date_last_seen", "price_eur" ]
}
mutate {convert => ["mileage", "integer"] }
mutate {convert => ["price_eur", "float"] }
mutate {convert => ["engine_power", "integer"] }
mutate {convert => ["door_power", "integer"] }
mutate {convert => ["seat_count", "integer"] }
}
output{
elasticsearch {
hosts => ["localhost:9200"]
index => "cars1"
document_type=>"sold_cars"
}
stdout{}
}`

Answer 1

The convert mutate filter is a hash, not an array: https://www.elastic.co/guide/en/logstash/current/plugins-filters-mutate.html#plugins-filters-mutate-convert
Try it like this:
input {
kafka {
bootstrap_servers => "localhost:9092"
topics => ["cars"]
}
}
filter {
csv {
separator => ","
columns => ["maker", "model", "mileage", "manufacture_year", "engine_displacement", "engine_power", "body_type", "color_slug", "stk_year", "transmission", "door_count", "seat_count", "fuel_type", "date_created", "date_last_seen", "price_eur"]
}
mutate {
convert => {
"mileage" => "integer"
"price_eur" => "float"
"engine_power" => "integer"
"door_power" => "integer"
"seat_count" => "integer"
}
}
}
output {
elasticsearch {
hosts => ["localhost:9200"]
index => "cars1"
document_type => "sold_cars"
}
stdout {}
}
You can also use convert inside the csv filter itself, like so:
csv {
separator => ","
columns => ["maker", "model", "mileage", "manufacture_year", "engine_displacement", "engine_power", "body_type", "color_slug", "stk_year", "transmission", "door_count", "seat_count", "fuel_type", "date_created", "date_last_seen", "price_eur"]
convert => {
"mileage" => "integer"
"price_eur" => "float"
"engine_power" => "integer"
"door_power" => "integer"
"seat_count" => "integer"
}
}