[英]Upgrade Elasticsearch to the latest version
I want to upgrade my ES cluster(current version: 7.6.2) to the latest version (7.15.2 until now) Is it ok to upgrade directly to the latest version or should I upgrade with 2 or 3 steps on different version?我想将我的 ES 集群(当前版本:7.6.2)升级到最新版本(7.15.2 到现在)可以直接升级到最新版本还是应该在不同版本上升级 2 或 3 步? For instance, for upgrading mongo db, it should be upgraded step by step to the next version... I just want to know what is the policy or even best practice for upgrading ES???
比如升级mongo db,应该逐步升级到下一个版本……我只想知道升级ES的策略甚至最佳实践是什么???
Thanks谢谢
It's totally fine to update between minor versions (7.x -> 7.y) as well as one major version up from latest minor version (6.8 -> 7.y), see upgrading document for the details.在次要版本(7.x -> 7.y)之间以及从最新次要版本(6.8 -> 7.y)升级的一个主要版本之间进行更新是完全可以的,详情请参阅升级文档。 Best of all, it can be a rolling upgrade so you can upgrade nodes in the cluster one by one without cluster downtime or data loss.
最重要的是,它可以是滚动升级,因此您可以逐个升级集群中的节点,而不会导致集群停机或数据丢失。 Just make sure cluster health is green before moving on to the next node.
只需确保集群运行状况为绿色,然后再继续下一个节点。
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