ElasticSearch 5.1 Fielddata is disabled in text field by default [ERROR: trying to use aggregation on field]
16,772
Solution 1
You need to aggregate on the keyword
sub-field, like this:
"aggs": {
"answer": {
"terms": {
"field": "answer.keyword"
}
},
That will work.
Solution 2
In Aggregation, just add keyword to answer.It worked for me. For text fields we need to add keyword. "field": "answer.keyword"
Solution 3
Adding to @Val's answer, you can also set the fielddata
to true during your mapping itself:
"answer": {
"type": "text",
"fielddata": true, <-- add this line
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
Comments
-
Nacho Nieva almost 2 years
Having this field in my mapping
"answer": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } },
i try to execute this aggregation
"aggs": { "answer": { "terms": { "field": "answer" } },
but i get this error
"type": "illegal_argument_exception", "reason": "Fielddata is disabled on text fields by default. Set fielddata=true on [answer] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory."
Do i have to change my mapping or am i using the wrong aggregation ? (just updated from 2.x to 5.1)
-
Val over 7 years
-
Kulasangar over 7 yearsAs per the exception (
Set fielddata=true on [answer]
), I thought the issue was from theanswer
in the mapping provided. -
Val over 7 yearsThat's because he aggregated on
answer
, but he's better off aggregating onanswer.keyword
since he has that field.