zsj777的专栏

ElasticHDGitHub - qax-os/ElasticHD: Elasticsearch 可视化DashBoard, 支持Es监控、实时搜索，Index template快捷替换修改，索引列表信息查看， SQL converts to DSL等https://github.com/qax-os/ElasticHD/releases/tag/1.4.\ElasticHD.exe -p 127.0.0.1:9800...

@AutowiredRestHighLevelClient restHighLevelClient;通过高级API获取restHighLevelClient.getLowLevelClient(); String method = "GET"; String endPoint = "/_sql"; Request request = new Request(method, endPoint); request.addPara.

GitHub - NLPchina/elasticsearch-sql: Use SQL to query ElasticsearchSince 7.5.0.0, the path/_sqlis changed to/_nlpcn/sql, and the path/_sql/_explainis changed to/_nlpcn/sql/explain.ES版本7.12.0.0./bin/elasticsearch-plugin install https://github...

package com.luding.diankan.es.utils;import org.apache.http.HttpHost;import org.apache.http.client.config.RequestConfig;import org.elasticsearch.action.search.SearchRequest;import org.elasticsearch.client.RestClient;import org.elasticsearch.client.Re.

索引名sourcedata，查看索引结构http://192.168.5.186:9200/sourcedata/_mapping?prettyES 7.x 索引名称必须都是小写

https://github.com/medcl/esmcopy indexindex_namefrom192.168.1.xto192.168.1.y:9200./bin/esm -s http://192.168.1.x:9200 -d http://192.168.1.y:9200 -x index_name -w=5 -b=10 -c 10000copy indexsrc_indexfrom192.168.1.xto192.168.1.y:9200a...

暂时记录，后期有时间整理集群各节点安装javaJAVA_HOME=/usr/local/jdk1.8.0_181CLASSPATH=.:$JAVA_HOME/jre/lib/ext:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarPATH=$JAVA_HOME/bin:$HOME/bin:$HOME/.local/bin:$PATH2、集群各节点系统配置修改echo '* soft nofile 65536' >> /etc/s

代码：es集群没有像类似redis集群那样需要修改很多东西，es集群比单节点多的仅仅是在spring.data.elasticsearch.cluster-nodes后多加几个连接：server.port=7777server.servlet.path =/es# elasticsearch集群名称，默认的是elasticsearchspring.data.elasticsearch.cluster-name=wtyy-es#节点的地址 注意api模式下端口号是9300，千万不要写成9200

（1）性能优化的杀手锏——filesystem cache （即 os cache，操作系统的缓存）es的搜索引擎严重依赖于底层的filesystem cache，你如果给filesystem cache更多的内存，尽量让内存可以容纳所有的indx segment file索引数据文件，那么你搜索的时候就基本都是走内存的，性能会非常高。比如说，你一共要在es中存储1T的数据，那么你的多台机器留个filesystem cache的内存加起来综合，至少要到512G，至少半数的情况下，...

"aggs" : { "<aggregation_name>" : { <!--聚合的名字 --> "<aggregation_type>" : { <!--聚合的类型 --> <aggregation_body> <!--聚合体：对哪些字段进行聚合 --> } [,"meta" : { [<meta_data_body>] } ]? &lt.

package com.pojo.common.core.utils;import cn.hutool.core.util.ZipUtil;import lombok.SneakyThrows;import org.apache.ibatis.logging.Log;import org.apache.ibatis.logging.LogFactory;import java.io.BufferedOutputStream;import java.io.File;import java..

{ "track_total_hits":true, "query": { "bool": { "must": [ { "term": { "rtype.keyword": "010100" } }, { "prefix": { "incharge_wa_department.keyword": "34" .

@GetMapping("/or") public Object or() { String urlAgg = "police_situation_no"; String urlType = "010100"; Script exist = new Script("doc['" + urlAgg + ".keyword'].size()>0"); BoolQueryBuilder booleanQuery = QueryBu...

{ "query": { "bool": { "must": [ { "term": { "rtype.keyword": "820100" } }, { "script": { "script": { "lang": "painless", "source": "doc[.

{ "query": { "bool": { "must": [ { "term": { "rtype.keyword": "020200" } } ] } }, "size": 0, "aggs": { "app": { "terms": { "script": "doc['contact_account_ty...

解决方案工程添加类package com.luding.task.config;import org.apache.http.HttpResponse;import org.apache.http.nio.protocol.HttpAsyncResponseConsumer;import org.elasticsearch.client.HeapBufferedAsyncResponseConsumer;import org.elasticsearch.client.HttpAsyncR

https://github.com/medcl/elasticsearch-analysis-ik后期维护