Elasticsearch 单机安装 下载 Elasticsearch Elasticsearch 版本 7.17.4 下载地址:https://www.elastic.co/cn/downloads/past-releases/elasticsearch-7-17-4
网速不好可以先下载在上传至服务器
1 2 3 wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.4-linux-x86_64.tar.gz tar -zvxf elasticsearch-7.17.4-linux-x86_64.tar.gz
配置 Elasticsearch elasticsearch.yml 1 2 3 vim config/elasticsearch.yml + network.host: 0.0 .0 .0
discovery.seed_hosts: 集群主机列表 discovery.seed_providers: 基于配置文件配置集群主机列表 cluster.initial_master_nodes: 启动时初始化的参与选主的node,生产环境必填 1 2 3 4 5 6 7 8 + node.name: node-1 - discovery.seed_hosts: ["node-1" ]- + cluster.initial_master_nodes: ["node-1" ]
vm.max_map_count 查看当前最大描述符大小系统环境变量
1 sysctl -a | grep vm.max_map_count
修改最大描述符大小
1 2 vim /etc/sysctl.conf + vm.max_map_count=262144
修改后需要重启才能生效
不想重启可以设置临时生效
1 sysctl -w vm.max_map_count=262144
JVM 分配大小 根据自己的内存自行调整,内存不够则会启动失败
1 2 3 4 5 6 vim config/jvm.options - ## -Xms4g - ## -Xmx4g + -Xms512m + -Xmx512m
最大描述符和最大线程数 修改后需要重新登录生效
1 2 3 4 5 6 7 vim /etc/security/limits.conf # 添加以下内容 * soft nofile 65536 * hard nofile 65536 * soft nproc 4096 * hard nproc 4096
启动 Elasticsearch ** 不能以 root 用户启动 **
创建用户 1 2 useradd likfees passwd likfees
增加管理员权限
1 2 3 vim /etc/sudoers + likfees ALL=(ALL) ALL
修改 Elasticsearch 权限
1 chown -R likfees:likfees elasticsearch-7.17.4
启动命令 1 2 3 4 bin/elasticsearch bin/elasticsearch -d
启动成功后 http://[ip]:9200 访问
访问失败请关闭防火墙
1 systemctl stop firewalld
分词器 elasticsearch-analysis-ik 分词器 https://github.com/medcl/elasticsearch-analysis-ik/releases/tag/v7.17.4
下载安装插件
1 2 3 4 5 6 cd /opt/Software/es/elasticsearch-7.17.4/plugins wget https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.4/elasticsearch-analysis-ik-7.17.4.zip unzip -d ik elasticsearch-analysis-ik-7.17.4.zip rm elasticsearch-analysis-ik-7.17.4.zip
elasticsearch-analysis-pinyin 拼音分词器 https://github.com/medcl/elasticsearch-analysis-pinyin/releases/tag/v7.17.4
下载安装插件
1 2 3 4 5 6 cd /opt/Software/es/elasticsearch-7.17.4/plugins wget https://github.com/medcl/elasticsearch-analysis-pinyin/releases/download/v7.17.4/elasticsearch-analysis-pinyin-7.17.4.zip unzip -d pinyin elasticsearch-analysis-pinyin-7.17.4.zip rm elasticsearch-analysis-pinyin-7.17.4.zip
启动 es7,查看启动日志文件
Kibana 安装 Libana kibana 版本 7.17.4 下载地址:https://www.elastic.co/cn/downloads/past-releases/kibana-7-17-4
1 2 3 4 5 wget https://artifacts.elastic.co/downloads/kibana/kibana-7.17.4-linux-x86_64.tar.gz tar -zvxf kibana-7.17.4-linux-x86_64.tar.gz mv kibana-7.17.4-linux-x86_64.tar.gz kibana-7.17.4
配置 Kibana 1 2 3 4 5 6 vim config/kibana.yml server.port: 5601 server.host: "0.0.0.0" elasticsearch.hosts: ["http://localhost:9200"]
启动 Kibana 1 nohup bin/kibana > logs/kibana-start.log 2>&1 &
节点监控
测试分词器 Management -> Dev Tools
普通分词 1 2 3 4 5 POST /_analyze { "analyzer" : "simple" , "text" : "我是一个程序员,嘿嘿嘿!" }
ik 分词 1 2 3 4 5 POST /_analyze { "analyzer" : "ik_smart" , "text" : "我是一个程序员,嘿嘿嘿!" }
pinyin 分词 使用自定义拼音分析器创建索引 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 PUT /medcl/ { "settings" : { "analysis" : { "analyzer" : { "pinyin_analyzer" : { "tokenizer" : "my_pinyin" } } , "tokenizer" : { "my_pinyin" : { "type" : "pinyin" , "keep_separate_first_letter" : false , "keep_full_pinyin" : true , "keep_original" : true , "limit_first_letter_length" : 16 , "lowercase" : true , "remove_duplicated_term" : true } } } } }
查询 1 2 3 4 5 GET /medcl/_analyze { "text" : [ "刘德华" ] , "analyzer" : "pinyin_analyzer" }
Elasticsearch 集群 克隆三台虚拟机,并配置ip,删除 ./data 数据目录
修改elasticsearch.yml
1 2 3 4 5 6 7 8 9 10 cluster.name: kkb-es node.name: node-0 node.master: true network.host: 0.0.0.0 http.port: 9200 transport.tcp.port: 9300 # tcp 端口 discovery.zen.ping.unicast.hosts: ["192.168.147.66:9300","192.168.147.67:9300","192.168.147.68:9300"] discovery.zen.minimum_master_nodes: 2 http.cors.enabled: true http.cors.allow-origin: "*"