blocks|key|4407073|text|因为你使用的是Elastic+5.x+(我写这篇文章的时候5.2已经发布了)，所以你应该使用新的关键字support，而不是在索引字段上启用fielddata。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4407074|https://www.elastic.co/guide/en/elasticsearch/reference/5.2/fielddata.html提供了关于优点和缺点以及如何设置的很好的信息。在该页面中：|offset|length|4407075|PUT+my_index
{
++"mappings":+{
++++"my_type":+{
++++++"properties":+{
++++++++"my_field":+{+
++++++++++"type":+"text",
++++++++++"fields":+{
++++++++++++"keyword":+{+
++++++++++++++"type":+"keyword"
++++++++++++}
++++++++++}
++++++++}
++++++}
++++}
++}
}|code-block|syntax|javascript|4407076|然后使用'my_field‘字段进行搜索，使用'my_field.keyword’字段进行聚合、排序或在脚本中使用。|4407077|my_field.keyword是您在Kibana+/+Grafana中使用的。|4407078|entityMap|0|LINK|mutability|MUTABLE|url|https://www.elastic.co/guide/en/elasticsearch/reference/5.2/fielddata.html^0|0|0|22|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

Since you're using Elastic 5.x (5.2 is out now as I write this), you should instead use the new keyword support instead of enabling fielddata on an indexed field.

<a href="https://www.elastic.co/guide/en/elasticsearch/reference/5.2/fielddata.html" rel="noreferrer">https://www.elastic.co/guide/en/elasticsearch/reference/5.2/fielddata.html</a> provides good information on the pros and cons and on how to set this.
From the page:

<pre><code>PUT my_index
{
 "mappings": {
 "my_type": {
 "properties": {
 "my_field": { 
 "type": "text",
 "fields": {
 "keyword": { 
 "type": "keyword"
 }
 }
 }
 }
 }
 }
}
</code></pre>

You then use the 'my_field' field for searches and the 'my_field.keyword' field for aggregations, sorting, or in scripts. 

my_field.keyword is what you would use within Kibana / Grafana.

blocks|key|4406933|text|这段代码解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4406934|PUT+megacorp/_mapping/employee
{
+++"employee":+{
++++++"properties":+{
++++++++"interests":+{
++++++++++"type":+"text",
++++++++++"fielddata":+true
++++++++}
++++++}
+++}
}|code-block|syntax|javascript|4406935|因此这段代码将在之后运行：|4406936|GET+/megacorp/employee/_search
++++{
++++++"aggs":+{
++++++++"all_interests":+{
++++++++++"terms":+{+"field":+"interests"}
++++++++}
++++++}
++++}|4406937|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This code fixes this problem.

<pre><code>PUT megacorp/_mapping/employee
{
 "employee": {
 "properties": {
 "interests": {
 "type": "text",
 "fielddata": true
 }
 }
 }
}
</code></pre>

So this code will run thereafter:

<pre><code>GET /megacorp/employee/_search
 {
 "aggs": {
 "all_interests": {
 "terms": { "field": "interests"}
 }
 }
 }
</code></pre>

blocks|key|4406957|text|在现有文本字段上启用fielddata，这是对此字段进行聚合所必需的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4406958|PUT+megacorp/_mapping/employee
{
++"properties":+{
++++"interests":+{+
++++++"type":+++++"text",
++++++"fielddata":+true
++++}
++}
}|code-block|syntax|javascript|4406959|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Enable fielddata on an existing text field, this is required to do aggregation on this field

<pre><code>PUT megacorp/_mapping/employee
{
 "properties": {
 "interests": { 
 "type": "text",
 "fielddata": true
 }
 }
}
</code></pre>

blocks|key|4407170|text|如果您来自"ElasticsearchThe权威指南“这本书，请尝试更改以下内容|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4407171|"terms"+:+{+"field"+:+"interests"+},|code-block|syntax|javascript|4407172|至|4407173|"terms"+:+{+"field"+:+"interests.keyword"+},|4407174|因此，要运行的代码将变成；|4407175|GET+/megacorp/employee/_search
{
++"aggs":+{
++++"all_interests":+{
++++++"terms":+{+"field":+"interests.keyword"}
++++}
++}
}|4407176|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

If you are coming from the book "ElasticsearchThe Definitive Guide", try changing this

<pre><code>"terms" : { "field" : "interests" },
</code></pre>

to

<pre><code>"terms" : { "field" : "interests.keyword" },
</code></pre>

So, the code to run will become;

<pre><code>GET /megacorp/employee/_search
{
 "aggs": {
 "all_interests": {
 "terms": { "field": "interests.keyword"}
 }
 }
}
</code></pre>

blocks|key|4407203|text|"your_type“字段是什么？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4407204|PUT+your_index/_mapping/your_type|code-block|syntax|javascript|4407205|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

what is the field &quot;your_type&quot;?
<pre><code>PUT your_index/_mapping/your_type
</code></pre>

I am new to Kibana, have data loaded into Elastic 5.0.0-alpha3 and am using Kibana 5.0.0-alpha3 to Visualise. I can display some numeric fields as histograms but when I want to use text fields I get:

<pre><code>Visualize: Fielddata is disabled on text fields by default. Set fielddata=true on [publisher] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.
</code></pre>

I am warned that the data (names of Publishers) may have been analyzed into subfields, but I'd like to display anyway.

How do I set <code>fielddata=true</code>?

EDIT: recent issues on Kibana github suggest that this is a new feature in 5.0.0 and is still awaiting an answer!

EDIT (following @Val's answer, and asking for Elastic newbie help, and hoping others will find it useful). The ingest script was:

<pre><code>fs = require('fs')

var elasticsearch = require('elasticsearch');
var client = new elasticsearch.Client({
 host: 'localhost:9200',
 log: 'trace'
});

fs.readFile('/Users/pm286/workspace/cmdev/getpapers/20160602/crossref_results.json', (err, data) =&gt; {
 if (err) throw err;
 document = JSON.parse(data)
 document = JSON.parse(data)

 for(i=0;i&lt;document.length;i++) {
 client.create({
 index: 'index',
 type: 'type',
 body: document[i]
 })
 }
 });
</code></pre>

How do I include @Val's approach in this?

how to set fielddata=true in kibana

Elasticsearch 

JSON

我是Kibana的新手，将数据加载到Elastic 5.0.0-alpha3中，并使用Kibana 5.0.0-alpha3进行可视化。我可以将一些数值字段显示为直方图，但当我想要使用文本字段时，我会得到：Visualize: Fielddata is disabled on text fields by defaul...

问如何在kibana中设置fielddata=true
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