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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
?conflicts=proceed "
The merge script is as follows:
#!/bin/sh
curl-xpost ' Http://192.168.1.101:9200/_forcemerge?
Only_expunge_deletes=truemax_num_segments=1 '6, there is no more general method.
have, use ES official website tool--curator tool. 6.1 Curator Introduction
Main purpose: To plan and manage the index of ES. Supports common operations: Create, delete, merge, Reindex, snapshot, and so on. 6.2 Cur
= Client.preparedelete ("Twitter", "tweet", "1")
. setoperationthreaded (False)
. Execute ()
. Actionget ();
The bulk of the javaapi of Elasticsearch
The Bulk API can be used to retrieve and delete multiple data in a single request, and here is an example:
Import
Static
org
.
Elasticsearch
.
Common
.
xcontent
.
xcontentfacto
shard.The default mode is SINGLE_THREAD .Elasticsearch's Javaapi Delete by queryThe Delete by Query API allows you to delete documents based on a query, from one or more based on index and one or more type. Here is an example:Import static Org.elasticsearch.index.query.filterbuilders.*;import static org.elasticsearch
In the 2.X version, this delete by query function was removed because the official thought it would cause some errors to install the plugin itself if needed.Bin/plugin Install Delete-by-queryWhen you need to useDELETE/Index name/type/_query{"query"needed to be emptied: {"match_all " : {}}}Then in the 5.x version of the API is again the official back to the self-f
Elasticsearch supports batch addition or deletion of index documents. In Java APIs, bulkrequestbuilder is constructed, batch index/delete requests are added to bulkrequestbuilder, and bulkrequestbuilder is executed. The following is an example:
Import static Org. elasticsearch
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 dele
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