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redis cluster 支持滚动升级 #103

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hlwanghl opened this issue Oct 22, 2020 · 2 comments

Contributor

hlwanghl commented Oct 22, 2020

先升级从节点，再升级主节点（主从节点属于两种角色，需要框架支持）
如果操作系统不太老，可以考虑原地升级
为了防止数据丢失，可以考虑升级过程禁止自动切换主从（看能否实现）

Contributor

MrYourM commented Oct 22, 2020

框架需要先处理掉 1 的问题

Contributor

MrYourM commented Oct 22, 2020

同版本 redis 可以先滚动升级所有从节点 --> 滚动切换主从关系 --> 再滚动升级主节点

不同版本的 redis 升级可能涉及到 redis 间的版本冲突，需要测试

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