[Elasticsearch] Elasticsearch index lifecycle management

1 Overview

1.1 Why do we need to conduct lifecycle management on elasticsearch?

Too many surviving ES indexes will put greater pressure on the ES cluster, which not only seriously affects the efficiency of data entry and data query, but also causes the disk and CPU usage to be too high, increasing the risk of node "crash". The index lifecycle management of ES is of great significance. It can not only improve server performance, reduce memory and disk usage, but also optimize data structure, improve read and write, and query efficiency, and avoid data loss.