更新生产中的ElasticSearch映射（轮胎） [英] Update ElasticSearch mapping in production (Tire)

问题描述

我想对如何处理以下情况有一个清楚的了解：

I would like to have a clear understanding on how to deal with the following scenario:

我正在添加或删除一个属性从一个activerecord模型，所以我想更新其在生产中的ElasticSearch的映射。

I'm adding or removing an attribute from an activerecord model, so I want to update its mapping in ElasticSearch, in production.

从我的理解，我应该..

From what I understood, I should...

这是正确的命令吗？ rake environment轮胎：import CLASS ='Bow'INDEX ='new-bows'
为了创建正确的映射，我应该已经更新了我的映射模型，对吗？

Is this the right command? rake environment tire:import CLASS='Bow' INDEX='new-bows' For this to create the right mapping, I should already have updated my mapping in the model, right?

我会这样做，是否正确？

I would do it like that, is it correct?

old_index_name = Bow.tire.index.name
Bow.tire.index.delete
alias = Tire::Alias.new
alias.name(old_index_name)
alias.index('new-bows')
alias.save

3-重新启动应用程序

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我错过了一些东西，还是有一个更简单的方法来实现我想要使​​用轮胎？

我应该在什么时候删除旧的索引？在创建具有相同名称的别名之前，或者可以在以后执行别名？

推荐答案

索引，直到你确定新的索引是100％你想要的。

You should keep the old index around until you're sure the new index is 100% what you want. You can flip the alias back if that would not be the case.

Tire测试套件中有一个集成测试，用于翻转别名。

There's an integration test in Tire test suite for "flipping aliases".

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