原英文版地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/xpack-rollup.html, 原文档版权归 www.elastic.co 所有
本地英文版地址: ../en/xpack-rollup.html
本地英文版地址: ../en/xpack-rollup.html
重要: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 当前版本文档。
Rolling up historical dataedit
This functionality is experimental and may be changed or removed completely in a future release. Elastic will take a best effort approach to fix any issues, but experimental features are not subject to the support SLA of official GA features.
Keeping historical data around for analysis is extremely useful but often avoided due to the financial cost of archiving massive amounts of data. Retention periods are thus driven by financial realities rather than by the usefulness of extensive historical data.
The Elastic Stack data rollup features provide a means to summarize and store historical data so that it can still be used for analysis, but at a fraction of the storage cost of raw data.