How to save large data send from logstash to Redis with list type?

I'm using logstash to send data to Redis as

output {
  redis {
    host => ["${REDIS_URL}"]
    data_type => "list"
    key => "ID"
    codec => line { format => "%{id}"}
  }
}

When I check data in Redis, it created an ID list with 10000 records data in DB0. But the real data is much than 10000 records. Is it the limit number in Redis? How to deal with other data in a list of DB with Redis?

If 10000 is a limit in Redis, can I use other db like DB1 to save other data?