elasticsearch stats api

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

Elasticsearch Java API (ii): index create delete cluster managementElastic official website has the authoritative Java API English needs to be patient to see here to tidy up the basic operationCreate a MAVEN project to add dependencies First, customize a client to connect ES/*** Created by Forgeeks at 2017-03-22 18:27*/ Public classmyclient {PrivateSetting

();Transportclient client = new prebuilttransportclient (settings);Other transport client settings include:Client.transport.ignore_cluster_name: Set to True to ignore the checksum of the cluster name when the node is connectedClient.transport.ping_timeout: Set the wait time for a node to get response, default 5 SecondsClient.transport.nodes_sampler_interval: How long does it take to get/ping list of nodes and connect, default 5 secondsThree. View cluster information list client.connected

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

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":