In the Uint index, I have about 1,000,000,000 values ??for one day. Therefore, at the end of two days I will get a problem.
What are the solutions?

Bottom here https://www.elastic.co/guide/en/elasticsearch/reference/current/_basic_concepts.html#_index you can find a note:

Each Elasticsearch shard is a Lucene index. There is a maximum number of documents you can have in a single Lucene index. As of LUCENE-5843, the limit is 2,147,483,519 (= Integer.MAX_VALUE - 128) documents. You can monitor shard sizes using the _cat/shards API.

The issue number from note is here https://issues.apache.org/jira/browse/LUCENE-5843