elasticsearch put mapping

Elasticsearch Learning Notes (iv) Mapping mapping Mapping Brief IntroductionElasticsearch is a schema-less system, but does not represent no shema, but rather guesses the type of field you want based on the underlying type of JSON source data. Mapping is similar to a data t

": {"Name": {"type": "Text"}, "user_name": {"type": "Keyword"}, "email": {"type": "Keyword"} }}, "tweet": {"Properties": {"content": {"type": "Text"}, "user_name": {"type": "Keyword" }, "Tweeted_at": {"type": "Date"}}}}}put twitter/user/kimchy{"name": "Shay Banon", "user_name": " Kimchy "," email ":" [emailprotected] "}put twitter/tweet/1{" user_name ":" Kimchy "," Tweeted_at ":" 2017-10-24t09:0 0:00z

No. 364, Python distributed crawler build search engine Scrapy explaining-elasticsearch (search engine) mapping mapping management1, mapping (mapping) Introductionmapping : When creating an index, you can pre-define the type of field and related propertiesElasticsearch guess

the result represents a word: {" tokens": [ { "token": "text", "Start_offset": 0, "end_offset": 4, " type": " Token is a word that is actually stored in the index. The position specifies the number of occurrences of the word in the original text. Start_offset and End_offset indicate where the word occupies in the original text. The Analyze API is a useful tool for understanding the inner details of the

always want to do this. Perhaps you want to use a language analyzer that is better suited to this data. Or, you just want to treat the string field as a normal field--no analysis, just the exact value, just like the user ID of the string type or the internal state field or label.To achieve this effect, we must manually set these fields through mapping (mapping).MappingWe know that each document in the inde

toDynamicMappingNewField names would be added automatically, just by indexing a document. New fields can is added both to the top-level mapping type, and to innerObjectand nested fields. theDynamicMapping rules can configured to customise the mapping that isUsed for NewFields . Explicit mappingsedityou know more on your data than Elasticsearch can guess, so whil

things that people often use to translate, which brings great convenience to development. 4.ES English website Document Learning route If you need to use ES in a short period of time, you can start quickly with the following route and learn something advanced. The following learning route is to have many years of development experience colleagues to me planning, I hope to be useful to you. The ES version used by my company is 2.3 and encapsulates its own framework. Therefore, when you view the

ElasticSearch Index API Mapping, elasticsearchapiElasticSearch NEST Client operation Index Var indexName = "twitter "; Var deleteIndexResponse = client. DeleteIndex (indexName );Var createIndexResponse = client. CreateIndex (indexName );Var getIndexResponse = client. GetIndex (indexName );Var indexExistsResponse = client. IndexExists (indexName );Var openIndexResponse = client. OpenIndex (indexName );Var c

Recently, the project is ready to use elasticsearch, first need to make clear the concept of elasticsearch, found this article on the Internet is good, in plain language to understand the concept of mapping. Default Mapping Elasticsearch (hereinafter referred to as ES) is n

" } } }}‘Return Error:{ "error ": {" root_cause ": [{"type": " Illegal_argument_exception "," reason ": "Mapper [OnSale] of different type, Current_type [Boolean], Merged_type [string]"}], "type ": " Illegal_argument_exception "," Reason ": " mapper [OnSale] of different type, Current_type [Boolean ], Merged_type [string] "}," status ": Why can't I modify the type of a field? The reason is that after the type of a field has been modified, all data for that field needs to be

This article mainly explains some of mapping's related configuration and need to pay attention to the place, said mapping everyone may feel somewhat puzzled, in fact, I can generally understand elasticsearch as an RDBMS (relational database, such as MySQL), then index The equivalent of a database instance, type can be understood as a table, so that mapping can be

to use in the query string parameter, the parsed text as the request body:GET /_analyze?analyzer=standardText to analyzeEach node in the result represents a word:{"Tokens": [ {"token":"Text","Start_offset":0,"End_offset":4,"Type":","Position":1}, {"token":"to","Start_offset":5,"End_offset":7,"Type":","Position":2}, {"token":"Analyze","Start_offset":8,"End_offset": the,"Type":","Position":3} ]}tokenis a word that is actually stored in the index. The position specified word is th

Recently in taking over the work of Elasticsearch, which added new fields to the existing mapping, the first to find information on the Internet, found that the information on the Internet is about updating the existing field types in mapping, so write an article about the existing mapping to add new The field of the a

the contents of the API.With the above configuration file, you can configure the output plug-in in Logstash:Output {elasticsearch {host="localhost"#ES的服务器地址 Protocol="http"#使用的协议, node may be used by default, depending on the environment of the machine index="logstash-%{+yyyy. MM.DD}"#匹配的索引模式 Document_type="Test"#索引的类型, the old configuration uses Index_type, but this field has been deprecated in the new version, and Document_type is recommended Manag

1. Create an index/*** Create an index**@paramIndexName */public static voidCreateIndex (String indexname) { Delete before inserting to avoid error Boolean flag =Client.admin (). Indices (). Exists (New Indicesexistsrequest (). Indices (new string[]{indexname}). Actionget (). Isexists () ; client.admin (). Indices (). Preparedelete (IndexName). Execute (). Actionget () ; " client.admin (). Indices (). Preparecreate (IndexName). Get () ; //client.admin (). Indices (). Preparecreate (IndexNa

Elasticsearch Reference [6.2]? MappingRefer to the official English document Https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.htmlMapping is the process of defining how a document and the fields it contains are stored and indexed, each with a mapping type that determines how the document will be indexed.Meta-fieldsInclude _index,_type,_id a

":" String "}," raw ": {" type ":" string "," index ":" Not_analyzed "}}}}The above file says that we define its mapping for Index_type, the index type. The point is to map the name field to two, one to name the index analysis, and the other to not analyze raw, which will not split the phrase New York. So when we do the search, we can do the term aggregation for the Name.raw field and get the number of occurrences in all cities. Term Aggregation's Th

After good elk, sometimes found Kibana statistics, the data type is wrong, this time and elasticsearch mapping, although we can use Logstash to modify the data type in ES, such as float or int or string. But there are no double types, and even if you convert, you will find that the data written to ES is defined by the ES mapping table. Next we will learn to modif

ElasticSearch NEST Client Operation indexvar indexname= "Twitter";var deleteindexresponse = client. Deleteindex (IndexName);var createindexresponse = client. CreateIndex (IndexName);var getindexresponse = client. GetIndex (IndexName);var indexexistsresponse = client. Indexexists (IndexName);var openindexresponse=client. Openindex (IndexName);var closeindexresponse=client. Closeindex (IndexName);1. CREATE indexPUT twitter{}2. Delete IndexDelete/twitter

Disclaimer : Learn to explore notes, non-result definitions . Many of them may be wrong, the reference value is not big Elasticsearch's mapping Order number such as: ATTS000928732 type does not participle. index:not_analyzed The order number is all data such as: 63745345637 such participle is possible. put/order_v5{"Settings": {//Set 10 shards, understood as a partition in a table partition in a databa