Hello,
Check this link
https://discuss.elastic.co/t/what-is-the-date-format-to-be-used-with-logstash-to-match-9-digits-millisecond/107032/2
© 2020. All Rights Reserved - Elasticsearch
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant logo are trademarks of the Apache Software Foundation in the United States and/or other countries.