elasticsearch api

Count APIThe Count API allows developers to simply execute a query that returns the total number of documents that match the query criteria. It can be executed across multiple indexes and across multiple types.import static org.elasticsearch.index.query.xcontent.FilterBuilders.*;import static org.elasticsearch.index.query.xcontent.QueryBuilders.*;CountResponse response = client.prepareCount("test") .setQuery(termQuery("_type", "type1")) .execute() .ac

filterFilterBuilder filter = FilterBuilders.termFilter("colour", "pale");TermsFacetBuilder facet = FacetBuilders.termsFacet("f") .field("brand") .facetFilter(filter); // We apply it to the facetSearchResponse sr = node.client().prepareSearch() .setQuery(QueryBuilders.matchAllQuery()) .setFilter(filter) // We apply it to the query .addFacet(facet) .execute().actionGet();ScopeBy default, facets Act on the result set of the query. However, regardless of the query, you can use global parameters

One, delete by query result (delete byquery API)Bulkbyscrollresponse response =DeleteByQueryAction.INSTANCE.newRequestBuilder (client)//transport Client. Filter (Querybuilders.matchquery ("Gender", "male")//query criteria. Source ("persons")//Index name. get ();Long deleted = response.getdeleted (); Number of deleted documentsSecond, the query results are deleted asynchronouslyDeleteByQueryAction.INSTANCE.newRequestBuilder (client). Filter (Querybu

}/_mapping/{types}curl-xdelete Http://localhost:9200/{indices}/_alias/{names}curl-xdelete/HTTP Localhost:9200/{indices}/_warmer/{names}where {Indices},{type} and {name} can be any of the following: _all , * or empty, these 3 values mean the same, representing all possible values Wildcard characters, such as "test*" Comma-delimited list, for example : index_1,test_* The only exception is the delete command, which does not receive an empty value.If you want to delete anythin

The main content of this article:1 common operations for ElasticSearch2 ElasticSearchBulk Command ES REST APIThe Elasticsearch supports a variety of communications, including the HTTP request response service, so you can send HTTP requests with the Curl command and get the JSON return content.Common REST requests are:Check cluster statusCurl Localhost:9200/_cat/health?vCheck node statusCurl Localhost:9200/_cat/nodes?vQuery all IndexesCurl Localh

View all Indexcurl http://localhost:9200/_cat/indices?v See all doc volumes Curl Http://localhost:9200/_cat/count?v View all node storage spaces Turntable Curl http://localhost:9200/_cat/allocation?v View all node file system Status Curl http://localhost:9200/_nodes/stats/ Fs?pretty View all node available disk sizes Curl Http://localhost:9200/_cat/nodes?h=h,diskavail Help=^.^=/_cat/allocation/_cat/shards/_cat/shards/{index}/_cat/master/_cat/nodes/_cat/indices/_cat/indices/{index} /_cat/segments

First, create an index/***** Setting Related Settings*/Static final Builder builder = Settings.builder (). Put ("Index.analysis.search_analyzer.default.type", "Ik_smart"). put ("Index.analysis.analyzer.default.type", "Ik_max_word"). Put ("Index.mapping.total_fields.limit", 30000);Client.admin (). Indices (). Preparecreate (IndexName). Setsettings (builder). get ();Second, delete the indexDeleteindexresponse response = Client.admin (). Indices (). Preparedelete (IndexName). Execute (). Actionget

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

(Springjunit4classrunner.class) @ContextConfiguration (locations = "Classpath:applicationContext.xml") public class TestES {@Autowired @Qualifier ("esclient") Private CLient client; @Test public void Testsearch () {String index= "index_log_daily"; String type= "Uq_log"; String uquestion = "139"; String province = "Jiangsu"; SearchResponse SearchResponse = Client.preparesearch (index). Settypes (Type). Setquery (Quer Ybuilders.matchallquery ())//query all. Setquery (Q

First, a query, you need to establish a searchrequestbuilder, which will give a query for which index or type, and all the settings can be implemented here, such as fuzzy query, scope query, prefix query.Searchrequestbuilder Responsebuilder = Client.preparesearch ("case"). Settypes ("Case_info");Two. Total number of statistical records SearchResponse response = Client.preparesearch ("case") . Settypes ("Case_info") . Setsearchtype (Searchtype.default)

integer with a millisecond time or a string that ends with a date. For example "2d" means 2 days, supported formats are: Y (year), M (month), W (week), D (Day), H (Hour), M (minute), S ( Second4. Distance: You can submit a certificate in meters or a string that ends at a distance, for example, "2km" means 2-kilometer, and the supported formats are: Mi/miles (mile miles), Yd/yards (yard code), Ft/feet (feet ruler), In/inch ( inch inches), km/kilometers (kilometer km), m/meters (meter m), cm/cent

First, the demandYou need to implement a field in the project to delete the document and delete a property of the specified field.Take document TEST/DOCUMENT/1 as an example:{ "_index":"Test", "_type":"Document", "_id":"1", "_score":1, "_source":{ "class":"Com.test.data", "ID":1, "Items":[{"class": "Com.test.data", "ID": 1 }], "lastupdated":"2016-07-22t11:26:56z", "ProcessInstance":{"class": "Com.test.data", "ID": 1 }, "Tians

To group queries by aggregation:　　SearchResponse response = Client.preparesearch (Index_douban). Settypes (Type_douban). Addaggregation (Aggregationbuilders.terms ("By_" +tag). Field (TAG). Size (1000)). Execute (). Actionget ();Terms Terms = Response.getaggregations (). Get ("By_" +tag);For (Bucket b:terms.getbuckets ()) {Sum sum = b.getaggregations (). Get ("sum");List.add (String) B.getkey ());System.out.println ("Filedname:" +b.getkey () + "Doccount:" +b.getdoccount ());}It is important to n

", "Carsource", "1"). //SetSource (Model2json ()). get ();//if (urequest.) {//System.out.println ("add Success");// } } Public Static voidsetmapping (client client) {Try{putmappingresponse response=client.admin (). Indices (). prepareputmapping ("Carsrc"). SetType ("Carsource"). SetSource (Xcontentfactory.jsonbuilder (). StartObject () . StartObject ("Car_name"). StartObject ("Cars"). Field ("Analyzer", "whitespace"). Field ("Type", "string"). EndObject (). EndObject (). Endobjec

Getquerybuilder (RequestType request, Boolquerybuilder Bq) {Getorderquerybuilder (request, BQ);Addpurchaseorderquerybuilder (request, BQ);}/*** Query conditions** @param request* @param BQ*/private void Getorderquerybuilder (RequestType request, Boolquerybuilder Bq) {Termquery exact match, no participle equals =Type.childtype Multilayer type nesting, specific index structure, reference mappingGET yourindexname/_mappingMapping:{"Yourindexname": {"Mappings": {"Type1": {"Properties": {"Childtype":

Elasticsearch queries query conditions in JSON format. in Java APIs, Query Builder objects are constructed. elasticsearch fully supports querydsl-style queries. The construction class of querybuilder is querybuilders, the filter build class is filterbuilders. The following is an example of constructing querybuilder: Import static Org. elasticsearch. index. quer

This article is for the translation of official documents and personal understanding. When the author translates, the version of Elasticsearch (hereinafter referred to as ES) is 1.2.2. Please support original: http://www.cnblogs.com/donlianli/p/3836768.htmlI. Changes in statistical information-related ordersFor cluster state Cluster_state, node information Nodes_info, node statistics nodes_stats and index Information indices_stats command format are u

Text query has been removed, use matching query (match search) Domain-oriented search (field query) has been removed, please use query_string instead Document-oriented weighted _boost fields have been removed, use Function_score instead The path parameter is removed, use the copy_to parameter Custom_score and Custom_boost_score are no longer supported, please use Fuction_score instead About me, Handan people. Weibo: Http://weibo.com/donlianli interested in this kin

Original address: http://blog.csdn.net/u012116196/article/details/51754845 The Bulkprocessor class provides a simple interface for automatic flushing of bulk operations based on the number or size of requests, or at a given period. Using it, you first create a Bulkprocessor instance:[Java] View Plain copy importorg.elasticsearch.action.bulk.backoffpolicy; import org.elasticsearch.action.bulk.bulkprocessor; Importorg.elasticsearch.common.unit.bytesizeunit ; importorg.elasticsearch.common.unit.b

result set. SetSize (1000)//sets whether to sort by query matching. Setexplain (TRUE)///finally return to the search ring should be information. Execute (). Actionget (); Searchhits searchhits=response.gethits ();//System.out.println ("-----------------in [" +term+ "] Search for keywords [" +querystring +"]---------------------"); System.out.println (System.currenttimemillis ()-L); System.out.println ("co-match to:" +searchhits.gettotalhits () + "strip record!");