It does not retry the 409, there is just a single instance of
[2022-06-08T14:08:45,101][WARN ][logstash.outputs.Elasticsearch][main][ded7c2896208304e6887fb9969cdd51534a5ace0eafa08289f565caac9250dbd] Failed action {:status=>409, :action=>["create", {:_id=>"14", :_index=>"ecs-logstash-2022.06.08", :routing=>nil}, {"event"=>{"sequence"=>0, "original"=>"{"id": 14}"}, "@version"=>"1", "id"=>14, "@timestamp"=>2022-06-08T18:08:44.971913Z, "host"=>{"name"=>"ip-172-31-22-149.us-east-2.compute.internal"}}], :response=>{"create"=>{"_index"=>"ecs-logstash-2022.06.08", "_id"=>"14", "status"=>409, "error"=>{"type"=>"version_conflict_engine_exception", "reason"=>"[14]: version conflict, document already exists (current version [1])", "index_uuid"=>"MiVA-Ee_QfOJhn_C3ckXlA", "shard"=>"0", "index"=>"ecs-logstash-2022.06.08"}}}}