I think you hit the same issue described here: Node names missing after upgrading ES and Marvel to 2.1, KB to 4.3.0
I think you hit the same issue described here: Node names missing after upgrading ES and Marvel to 2.1, KB to 4.3.0
© 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.