将 JSON 文件导入/索引到 Elasticsearch

Question

I am new to Elasticsearch and have been entering data manually up until this point. For example I've done something like this:

$ curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '{
    "user" : "kimchy",
    "post_date" : "2009-11-15T14:12:12",
    "message" : "trying out Elastic Search"
}'

I now have a .json file and I want to index this into Elasticsearch. I've tried something like this too, but no success:

curl -XPOST 'http://jfblouvmlxecs01:9200/test/test/1' -d lane.json

How do I import a .json file? Are there steps I need to take first to ensure the mapping is correct?

Answer 1

The right command if you want to use a file with curl is this:

curl -XPOST 'http://jfblouvmlxecs01:9200/test/_doc/1' -d @lane.json

Elasticsearch is schemaless, therefore you don't necessarily need a mapping. If you send the json as it is and you use the default mapping, every field will be indexed and analyzed using the standard analyzer .

If you want to interact with Elasticsearch through the command line, you may want to have a look at the elasticshell which should be a little bit handier than curl.

2019-07-10: Should be noted that custom mapping types is deprecated and should not be used. I updated the type in the url above to make it easier to see which was the index and which was the type as having both named "test" was confusing.

Answer 2

Per the current docs, https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html :

If you're providing text file input to curl, you must use the --data-binary flag instead of plain -d. The latter doesn't preserve newlines.

Example:

$ curl -s -XPOST localhost:9200/_bulk --data-binary @requests

Answer 3

我们为这类事情做了一个小工具https://github.com/taskrabbit/elasticsearch-dump

Answer 4

One thing I've not seen anyone mention: the JSON file must have one line specifying the index the next line belongs to, for every line of the "pure" JSON file.

IE

{"index":{"_index":"shakespeare","_type":"act","_id":0}}
{"line_id":1,"play_name":"Henry IV","speech_number":"","line_number":"","speaker":"","text_entry":"ACT I"}

Without that, nothing works, and it won't tell you why

Answer 5

I'm the author of elasticsearch_loader
I wrote ESL for this exact problem.

You can download it with pip:

pip install elasticsearch-loader

And then you will be able to load json files into elasticsearch by issuing:

elasticsearch_loader --index incidents --type incident json file1.json file2.json

Answer 6

I just made sure that I am in the same directory as the json file and then simply ran this

curl -s -H "Content-Type: application/json" -XPOST localhost:9200/product/default/_bulk?pretty --data-binary @product.json

So if you too make sure you are at the same directory and run it this way. Note: product/default/ in the command is something specific to my environment. you can omit it or replace it with whatever is relevant to you.

Answer 7

Adding to KenH's answer

$ curl -s -XPOST localhost:9200/_bulk --data-binary @requests

You can replace @requests with @complete_path_to_json_file

Note: @ is important before the file path

Answer 8

just get postman from https://www.getpostman.com/docs/environments give it the file location with /test/test/1/_bulk?pretty command.

Answer 9

You are using

$ curl -s -XPOST localhost:9200/_bulk --data-binary @requests

If 'requests' is a json file then you have to change this to

$ curl -s -XPOST localhost:9200/_bulk --data-binary @requests.json

Now before this, if your json file is not indexed, you have to insert an index line before each line inside the json file. You can do this with JQ. Refer below link: http://kevinmarsh.com/2014/10/23/using-jq-to-import-json-into-elasticsearch.html

Go to elasticsearch tutorials (example the shakespeare tutorial) and download the json file sample used and have a look at it. In front of each json object (each individual line) there is an index line. This is what you are looking for after using the jq command. This format is mandatory to use the bulk API, plain json files wont work.

Answer 10

从 Elasticsearch 7.7 开始，您还必须指定内容类型：

curl -s -H "Content-Type: application/json" -XPOST localhost:9200/_bulk --data-binary @<absolute path to JSON file>

Answer 11

I wrote some code to expose the Elasticsearch API via a Filesystem API.

It is good idea for clear export/import of data for example.

I created prototype elasticdriver . It is based on FUSE

Answer 12

• If you are using the elastic search 7.7 or above version then follow below command.

  curl -H "Content-Type: application/json" -XPOST "localhost:9200/bank/_bulk? pretty&refresh" --data-binary @"/Users/waseem.khan/waseem/elastic/account.json"

• On above file path is /Users/waseem.khan/waseem/elastic/account.json .

• If you are using elastic search 6.x version then you can use the below command.

curl -X POST localhost:9200/bank/_bulk?pretty&refresh --data-binary @"/Users/waseem.khan/waseem/elastic/account.json" -H 'Content-Type: application/json'

Note : Make sure in your .json file at the end you will add the one empty line otherwise you will be getting below exception.

"error" : {
"root_cause" : [
  {
    "type" : "illegal_argument_exception",
    "reason" : "The bulk request must be terminated by a newline [\n]"
  }
],
"type" : "illegal_argument_exception",
"reason" : "The bulk request must be terminated by a newline [\n]"
},
`enter code here`"status" : 400

Answer 13

if you are using VirtualBox and UBUNTU in it or you are simply using UBUNTU then it can be useful

wget https://github.com/andrewvc/ee-datasets/archive/master.zip
sudo apt-get install unzip (only if unzip module is not installed)
unzip master.zip
cd ee-datasets
java -jar elastic-loader.jar http://localhost:9200 datasets/movie_db.eloader

Answer 14

If you want to import a json file into Elasticsearch and create an index, use this Python script.

import json
from elasticsearch import Elasticsearch

es = Elasticsearch([{'host': 'localhost', 'port': 9200}])
i = 0
with open('el_dharan.json') as raw_data:
    json_docs = json.load(raw_data)
    for json_doc in json_docs:
            i = i + 1
            es.index(index='ind_dharan', doc_type='doc_dharan', id=i, body=json.dumps(json_doc))

Answer 15

Thank you great work ! SO many useful tips...