add logseq-java
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logseq-java/pages/ElasticSearch.md
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logseq-java/pages/ElasticSearch.md
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- 一个分布式的开源搜索和分析引擎,在[[Apache]][[Lucene]]的基础上开发而成
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- 优势
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- 速度快
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- 具有分布式的本质特征
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- 包含一系列的广泛功能
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- 简化了数据采集,可视化和报告过程
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- [[Cluster]]集群
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- Node节点
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- 一个节点是一个ES的实例
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- Shard分片
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- 基于分片可进行分布式的并行的操作,进而提高性能,吞吐量
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- 与 [[MySQL]]的比较
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- [[Docker]]安装
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- ```yml
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# PATH /usr/local/config/elasticsearch.yml
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cluster.name: "docker-cluster"
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network.host: 0.0.0.0
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http.cors.enabled: true
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http.cors.allow-origin: "*"
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http.cors.allow-headers: Authorization
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```
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- ```bash
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docker run -d --name es -v /usr/local/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml -p 9200:9200 -p 9300:9300 --privileged=true -e ES_JAVA_OPTS="-Xms256m -Xmx256m" -e "discovery.type=single-node" registry.cn-hangzhou.aliyuncs.com/elasticsearch/elasticsearch:7.2.1
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```
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