在弹性搜索模板运行时中为索引添加别名 [英] Adding alias to index in elastic search template runtime

问题描述

我想为Elasticsearch模板中的索引添加别名，但是别名并不总是固定的.它以客户ID开头.由于数据量大，我们将为每个客户端分别创建月度索引，我希望一个人从所有月度索引中查询数据.但是，由于每个客户端都有不同的索引，因此别名必须由clientId前缀.我该如何实现?

I want to add an alias to the index in elasticsearch template, but the alias is not always fixed. Its prepended by a client id. Due to the size of the data, we are creating monthly indexes for each client separately, and I want a single to query the data from all monthly indexes. However, because each client has different indexes, the alias has to prepended by clientId. How can I achieve this?

例如:我的索引是:

client1_01_18_user_location/user_location ， client1_02_18_user_location/user_location

和

client2_01_18_user_location/user_location ， client2_02_18_user_location/user_location

在每个客户的情况下，一月份的数据将转到第一索引，而二月份的数据将转到第二索引.我希望根据要插入数据的客户端创建别名 client1_ul 或 client2_ul .

The data for the month of January goes to 1st index, and for Feb goes to 2nd index in each client's case. I want an alias client1_ul or client2_ul to be created, based on, for which client the data is being inserted.

我该如何实现?

推荐答案

您可以使用POST这样解决:

You can solve with a POST like this:

POST /_aliases
{
    "actions" : [
        { "add" : { "index" : "client1*", "alias" : "client1_ul" } }
    ]
}

此调用会将形式为client1 *的所有索引添加到别名client1_ul中，该别名可用于查询所有月份.

This call will add all the index of the form client1* to the alias client1_ul, that can be used to query all the months.

每个用户都需要一个POST.

You will need a POST for each user.

否则，您可以使用索引模板对于每个客户端，如果添加别名时不是所有索引都存在.模板可以提供别名:

Otherwise, you can use a index template for each client, if not all the indexes are present when you add the alias. The template can provide an alias:

PUT _template/template_1
{
    "index_patterns" : ["client1*"],
    "mappings" : {
        ... optional
    },
    "aliases" : {
        "client1_ul" : {}
    }
}

通过这种方式，别名将在创建索引时由Elasticsearch自动添加到每个索引中.

In this way the alias will be added to each index at the index creation, automatically by elasticsearch.

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