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                [TOC] ### 配置Yum源 安裝elasticsearch的yum源的密鑰(這個需要在所有服務器上都配置) `rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch` 配置elasticsearch的yum源 `vim /etc/yum.repos.d/elasticsearch.repo` 在elasticsearch.repo文件中添加如下內容 ``` [elasticsearch-5.x] name=Elasticsearch repository for 5.x packages baseurl=https://artifacts.elastic.co/packages/5.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md ``` ### Yum安裝 安裝elasticsearch `yum install -y elasticsearch` ### 創建存放目錄 創建elasticsearch data的存放目錄,并修改該目錄的屬主屬組 ``` mkdir -p /data/es-data (自定義用于存放data數據的目錄) chown -R elasticsearch:elasticsearch /data/es-data ``` ### 配置文件修改 - 也可直接啟動 ``` vim /etc/elasticsearch/elasticsearch.yml 找到配置文件中的cluster.name,打開該配置并設置集群名稱 cluster.name: demon 找到配置文件中的node.name,打開該配置并設置節點名稱 node.name: elk-1 修改data存放的路徑 path.data: /data/es-data 修改logs日志的路徑 path.logs: /var/log/elasticsearch/ 配置內存使用用交換分區 bootstrap.memory_lock: true 監聽的網絡地址 network.host: 0.0.0.0 開啟監聽的端口 http.port: 9200 增加新的參數,這樣head插件可以訪問es (5.x版本,如果沒有可以自己手動加) http.cors.enabled: true http.cors.allow-origin: "*" 啟動elasticsearch服務 ``` ### 啟動 ``` systemctl start elasticsearch service elasticsearch start ``` ### 訪問 ``` curl -X get 127.0.0.1:9200 ``` ### RESTAPI #### 集群健康 ~~~ GET /_cluster/health { "cluster_name": "elasticsearch", "status": "green", "timed_out": false, "number_of_nodes": 1, "number_of_data_nodes": 1, "active_primary_shards": 0, "active_shards": 0, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 0 } ~~~ >`status` 字段指示著當前集群在總體上是否工作正常。它的三種顏色含義如下: >`green` 所有的主分片和副本分片都正常運行。 >`yellow` 所有的主分片都正常運行,但不是所有的副本分片都正常運行。 >`red` 有主分片沒能正常運行。 #### 添加索引 ~~~ PUT /blogs { "settings" : { "number_of_shards" : 3, "number_of_replicas" : 1 } } ~~~ #### 調整副本數 >在運行中的集群上是可以動態調整副本分片數目的,我們可以按需伸縮集群。讓我們把副本數從默認的`1`增加到`2` ~~~ PUT /blogs/_settings { "number_of_replicas" : 2 } ~~~ ### 安裝elasticsearch-head >`yum install -y npm ` >`git clone git://github.com/mobz/elasticsearch-head.git ` >`cd elasticsearch-head ` >`npm install ` >`npm run start ` >檢查端口是否起來 >`netstat -antp |grep 9100 ` >瀏覽器訪問測試是否正常 http://IP:9100/
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