elastticsearch 安装

配置java环境

wget https://repo.huaweicloud.com/java/jdk/8u201-b09/jdk-8u201-linux-x64.tar.gz  //下载安装包
tar -zxvf jdk-8u201-linux-x64.tar.gz   //解压
mv jdk1.8.0_201 /usr/local/jdk1.8/     //配置环境变量
vim /etc/profile    
　　export JAVA_HOME=/usr/local/jdk1.8
　　export PATH=$JAVA_HOME/bin:$PATH
　　export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

source /etc/profile
java -version   //查看java环境是否成功

安装elasticsearch（注意一定不能使用root用户运行）

$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.zip
$ unzip elasticsearch-5.5.1.zip
$ cd elasticsearch-5.5.1/ 
 ./bin/elasticsearch

新开一个终端测试

curl localhost:9200

{
  "name" : "atntrTf",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "tf9250XhQ6ee4h7YI11anA",
  "version" : {
    "number" : "5.5.1",
    "build_hash" : "19c13d0",
    "build_date" : "2017-07-18T20:44:24.823Z",
    "build_snapshot" : false,
    "lucene_version" : "6.6.0"
  },
  "tagline" : "You Know, for Search"
}

默认情况下，Elastic 只允许本机访问，如果需要远程访问，可以修改 Elastic 安装目录的config/elasticsearch.yml文件，去掉network.host的注释，将它的值改成0.0.0.0，然后重新启动 Elastic。

安装中文分词插件

./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v5.5.1/elasticsearch-analysis-ik-5.5.1.zip